Suppress comedian’s joke (3)

I believe the answer is:

gag

I'm a little stuck... Click here to teach me more about this clue!

This might be a double definition.

'suppress' is the first definition.
(thesaurus)

'comedian's joke' is the second definition.
'gag' can be an answer for 'joke' (synonyms). I'm not sure about the 'comedian's' bit.

Can you help me to learn more?

(Other definitions for gag that I've seen before include "Put a muzzle on the joke" , "Make quiet" , "Stifle; joke" , "Muzzle or silence" , "Muzzle in palindrome form" .)

I've seen this clue in The Times.

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