Quick to become a satirist (5)
I believe the answer is:
swift
I believe this clue is a double definition.
'quick' is the first definition.
(I've seen this in another clue)
'a satirist' is the second definition.
(Jonathan Swift)
'to become' is the link.
(Other definitions for swift that I've seen before include "Racy" , "Quick - writer" , "like a peregrine falcon?" , "Quick and rapid like a long-winged bird" , "Rapid - writer - bird" .)