One who imitates leaders of PETA yet chooses to wear fur? (7)
I believe the answer is:
copycat
'one who imitates' is the definition.
'leaders of peta yet chooses to wear fur?' is the wordplay.
'leaders of' says to take the initial letters.
'to wear' is an insertion indicator.
'fur?' becomes 'coat' (fur is a kind of coat).
The initial letters of 'peta yet chooses' is 'pyc'.
'pyc' put into 'coat' is 'COPYCAT'.
(Other definitions for copycat that I've seen before include "Person who imitates another in feline way" , "Some murders are" , "Emulator" , "One imitating another" , "One who imitates another" .)