I've seen these before somewhere (maybe here?), but they're all mixed up!
Who/what is being described by the clues below?
Consequence of a disastrous harvest
What a mathematician might do to clarify their work
Result from removing belly hairs
Criminal who upgrades photography equipment
Lobbying requests from a vessel
Murders with a knife
Fun name for a keyboard app
One way to complete a visual arts project
Be afraid of the 10th
Milwaukee team fan’s collection, maybe
Agent 47, for example
Like a debatable point
Label on a Soviet trash can, perhaps
Casual greeting to a parental unit
HINT 1
This person also smashes their mouth against a wall and hires a doggo.
HINT 2
Once you've solved the clues, you need to do something with them in order to extract a final clue that gives the final answer. You can do the same with the title clue to get the common theme among all these clues. Perhaps you should bother a male sheep about it?
HINT 3
For the first four clues, the enumerations are (4 3), (4 5), (5 3), and (6 6 4).