Solve the clues and fit the answers into the grid so that each of the coloured squares contains exactly four different letters.
- Sahara desert capitals of historically African region in Germany (4)
- Fifth Element: Besson's first and last is full of romance gold (5)
- Second detective inside to secretly investigate Scottish river (4)
- Animal with a bull's head, a dog's body and a panda's tail (3)
- College-educated snake brings top backing to African tree (6)
- In Shakespeare's time, has William's wife skipped away? (4)
- Oscar director up front in car radio station's trailers (6)
- Dick does not have a one-in-six chance serving object (4)
- Leaders of kiwi islands banned Mount Cook TV company (4)
- Kazakh reporter misses the last Aboriginal ceremony (4)
- Semitic genitor from a leftist country, not extreme (3)
- Winged beast goes about head hunting, makes money (4)
- Enormous avalanche starting in front, hold fast (5)
- Animal sound is ABBA's half-hearted arrangement (3)
- YouTube singer stays clear of Nazi organization (3)
- Headless horseman claims new head: a northerner (8)
- Metal instrument openers beneath Texas capital (3)
- Saw logs as sensitive about marathon finisher (5)
- Head covering leaves to discuss head covering (3)
- Raspy-voiced bassist takes off cap for award (4)
- Briefly, Barbara's bar bars bar back baloney (4)
- Blake's Adam is not the right side of Harlem (3)
- Selection of divas at a Stockholm attraction (4)
- Christianity contributing to Caribbean Dalma (3)
- Bong from a medical device with no casings (4)
- Intermediates and beginners, among others (2)
- First signs of serious issue to not stand (3)
- Knighted Oscar director left action star (6)
- René Magritte's secret medical procedure (5)
- A Thai sari entangling a Nobel laureate (9)
- Cat's daughter is part of a master race (4)
- Freeman returns to Morgan, for example (4)
- Ooze to snooze without the head loose (4)
- Back stabber cut in, as to talk back (4)
- Food containers covered by bulletins (4)
- Satellite is above the edge of space (3)
- Extremely tiny insectivorous tweeter (3)
- Wheat flour is not fully attainable (4)
- Dumpling baron loses region borders (3)
- Bonapartists lose leading painters (7)
- TV friend's cross bar introduction (4)
- Sailing organization in Casablanca (3)
- Promise to despise without limits (4)
- Spell within the best intentions (5)
- Helps with passes to goal scorer (7)
- Neck hair manner: cut near sides (4)
- Old coins from gold compression (5)
- Operatives eliminate SS dessert (3)
- Pirate phrase from Broken Arrow (3)
- Called out backer at card game (8)
- Islamic veils service contract (3)
- Star Alliance's Swedish front (3)
- City manager plays top record (3)
- Filleted maggot is hot stuff (4)
- Dawn gate dweller's aircraft (5)
- Private airline strike ends (4)
- Raps about woodworking tool (4)
- Pointer hastily cut short (6)
- Corrupted Yemen adversary (5)
- TV network's fundamentals (3)
- Tatum's creative activity (3)
- Beer's phonetic notation (3)
- Paul trimmed incorrectly (3)
- Almost menacing fellows (3)
- California rodent unit (5)
- LOL, decapitated king (3)
- Which is the top hat? (4)
- Falsely mean truly (4)
- Charles's beamer (3)
Hint for #11:
"Leftist" is meant as a reversal indicator, although as it happens the country in question is indeed leftist.