In making a scene, talk a lot (3)
I believe the answer is:
gas
'talk a lot' is the definition.
(gas can mean to talk at length)
'in making a scene' is the wordplay.
'in' says the answer is hidden in the clue.
'GAS' is hidden within 'making a scene'.
(Other definitions for gas that I've seen before include "Hydrogen, for example" , "that may quickly be stepped on" , "rabbit" , "See 2" , "Gossip" .)