Make pro say: 'Making a comeback' (5)
I believe the answer is:
forge
'make' is the definition.
(forging is a kind of making)
'pro say making a comeback' is the wordplay.
'pro' becomes 'for' (I've seen this before).
'say' becomes 'eg'.
'making a comeback' says the letters should be written backwards.
'eg' in reverse letter order is 'ge'.
'for'+'ge'='FORGE'
(Other definitions for forge that I've seen before include "Form by heating and hammering" , "Create by hammering" , "Blacksmith's premises" , "Furnace for heating metal" , "Counterfeit - smithy" .)