Whatever suggestion that was given to Adam when new animal appeared? (3,4,2)
I believe the answer is:
you name it
'whatever' is the definition.
(I've seen this before)
I can't explain the rest of the clue.
(Other definitions for you name it that I've seen before include "What happens to a baby at a christening?" , "whatever you want" , "whatever's needed" , "What to do with new baby" , "anything goes" .)