A distanced gesture — as holding in anger is (3,4)
I believe the answer is:
air kiss
'a distanced gesture' is the definition.
(mimed kiss from a distance)
'as holding in anger is' is the wordplay.
'holding in' is an insertion indicator.
'anger' becomes 'irk' (irking is a kind of angering).
'irk'+'is'='irkis'
'as' going around 'irkis' is 'AIR-KISS'.
(Other definitions for air kiss that I've seen before include "Greeting that's not touching" , "form of greeting" , "contactless transaction" .)