Jaunty bit of counterpoint, possibly (4)
I believe the answer is:
pert
'jaunty' is the definition.
(I've seen this before)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for pert that I've seen before include "It's fresh" , "Saucy, lively" , "Impudent, cheeky" , "Forward - saucy" , "Slightly insolent" .)