Cover of loveless work penned by revolutionary author (7)
I believe the answer is:
envelop
'cover' is the definition.
(enveloping is a kind of covering)
'loveless work penned by revolutionary author' is the wordplay.
I cannot quite understand how this works, but
'work' could be 'op' (abbreviation for opus) and 'op' is located in the answer.
This may be the basis of the clue (or it may be nonsense).
'of' is the link.
Can you help me to learn more?
(Other definitions for envelop that I've seen before include "Enclose" , "Swathe" , "Give all-round cover" , "Surround and embrace" , "Wrap up - pen love (anag)" .)