Refuse and return some aviator glasses (4)
I believe the answer is:
'refuse' is the definition.
(I've seen this before)
'return some aviator glasses' is the wordplay.
'return' is a reversal indicator.
'some' indicates the answer is hidden within the clue (some of the parts of the word are used).
'torg' is hidden within 'aviator glasses'.
'torg' written backwards gives 'GROT'.
'and' acts as a link.
(Other definitions for grot that I've seen before include "Filth" , "tat" , "Rubbish (slang); picturesque cave (poet.)" , "Refuse" .)