Put forward in pamphlets, e.g. gush that's retrograde (7)
I believe the answer is:
suggest
'put forward' is the definition.
(I've seen this before)
'in pamphlets e g gush that's retrograde' is the wordplay.
'in' indicates the answer is hidden within the clue.
'that's retrograde' shows that the letters should be reversed in order.
'tseggus' is hidden in the letters of 'pamphlets e g gush'.
'tseggus' reversed gives 'SUGGEST'.
(Other definitions for suggest that I've seen before include "Propose; imply" , "Intimate" , "Put forward (an idea)" , "Propose or drop a hint" , "Island off Java" .)