Gag made by the Italian during comic scene (7)
I believe the answer is:
silence
'gag' is the definition.
(thesaurus)
'the italian during comic scene' is the wordplay.
'the italian' becomes 'il' (the in Italian).
'during' means one lot of letters goes inside another.
'comic' is an anagram indicator.
'scene' with letters rearranged gives 'sence'.
'il' placed inside 'sence' is 'SILENCE'.
'made by' is the link.
(Other definitions for silence that I've seen before include "Lack of sound" , "Nothing said" , "There's nothing heard" , "Hush!" , "It is golden acccording to the 1960s song" .)