Blanket lover allows covers (7)
I believe the answer is:
overall
'blanket' is the definition.
(I've seen this before)
'lover allows covers' is the wordplay.
'covers' says the answer is hidden in the clue (I've seen 'covering' mean this).
'OVERALL' is hidden in the letters of 'lover allows'.
(Other definitions for overall that I've seen before include "In total" , "Protective clothing" , "All round" , "Taken as a whole" , "Dress for dirty work" .)