It's golden, they say (7)
I believe the answer is:
silence
'it's golden they say' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for silence that I've seen before include "Gag" , "may be required in court" , "It is golden acccording to the 1960s song" , "'The rest is - - '(Hamlet)" , "Nothing said" .)