Send me vet and lop off growths (12)
I believe the answer is:
developments
'growths' is the definition.
('development' can be a synonym of 'growth')
'send me vet and lop off' is the wordplay.
'and' is a charade indicator (letters next to each other).
'off' is an anagram indicator.
'send'+'me'+'vet'+'lop'='sendmevetlop'
'sendmevetlop' anagrammed gives 'DEVELOPMENTS'.
(Other definitions for developments that I've seen before include "MTD envelopes (anag.)" , "Stages of progress" , "Advances in a process" , "Evolutions" , "Move Len's dept (anag.)" .)