Battling conformity, troubled firm drops top executive (6)
I believe the answer is:
tycoon
'top executive' is the definition.
('tycoon' can be a synonym of 'top executive')
'battling conformity troubled firm drops' is the wordplay.
I cannot really see how this works, but
'firm' could be 'co' (a firm is a company) and 'co' is present in the answer.
This may be the basis of clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for tycoon that I've seen before include "Plutocrat" , "Big cheese in business" , "Wealthy or powerful business person" , "top businessman" , "Not coy? (anag)" .)