Winery’s first fruit crop (4)
I believe the answer is:
whip
'crop' is the definition.
(I've seen this in another clue)
'winery's first fruit' is the wordplay.
'winery's first' becomes 'w' (hst letter of 'winery').
'fruit' becomes 'hip' (the fruit of a rose).
'w'+'hip'='WHIP'
(Other definitions for whip that I've seen before include "Party official; punish" , "Strip of leather with handle, for beating" , "defeat" , "Strike with lash or rod" , "He maintains discipline among members" .)