This is not a "normal" crossword, but the clues are pretty normal, i.e. they're not cryptic-clues. The words you put into the boxes, though, aren't the answers to the clues, they're just related.
It's not really that complicated, but in order to clarify, my lawyer has provided the following statement:
Heretoforthwith, each Answer (hereinafter called The "A") that is derived from the Clues (hereinafter called the "C"s) will not be placed into the Boxes (hereinafter called the "B"s) provided by the Formulator (hereinafter called the "F") of said Crossword.
The letters that are put into the "B"s will be relevant "A"s of the "C"s and the number of letters to be placed into each "B" is denoted in parentheses at the end of each "C" in the notation (##).
I trust that this statement clears up any questions you may have.
The ☑ will go to the first person to
a) provide the phrase that is hidden in the completed puzzle
b) answer the "F"s answer to the Title Question.
R O C K -N- R O L L
ACROSS
1 --- Escalate to the Great Beyond (11)
4 --- Flickering Flare (9)
7 --- What Philanthropists do with money (18)
15 -- Fountain Pen Delivery Unit (12)
16 -- Almost all my Cards are Spades, Clubs, and Diamonds (3)
17 -- Cosmos Convoy (10)
19 -- "Johnny, your sheets smell terrible!" (7)
21 -- Wounded by Passion (8)
22 -- Nocturnal Aviation (4)
25 -- You Disturbed me from Dusk 'till Dawn (4)
26 -- Evaluating the Pros and Cons of my Current Wherabouts (5)
29 -- Unparalleled, Skeletally (15)
30 -- ¡Cálmate! (6)
DOWN
2 --- Are you Coming with Me? (12)
3 --- Ambulate, like so (9)
5 --- Loco Loco (12)
6 --- He who Tickles Ivory (9)
8 --- Vicious Fishes (5)
9 --- Circling the Disposal Unit (8)
10 -- Passports to Hawaii? (10)
11 -- How I Describe my Mother-In-Law (22)
12 -- Left at Bellevue (18)
13 -- Step Back, Jack! (6)
14 -- Paralyzed in a Barcalounger (9)
18 -- Correct: "Favorite" Correct: "Favourite" (2)
20 -- BOGO Chicken (13)
23 -- Let's Powerlessly Travel Overseas (4)
24 -- Toss You Cyclonically (9)
27 -- Steady Stream (8)
28 -- Roy Rogers in the 21st Century (5)
BTW, the word "The" will not go into any of the boxes.