A quick reply showing wit or spite perhaps (7)
I believe the answer is:
riposte
'a quick reply' is the definition.
(I've seen this before)
'or spite perhaps' is the wordplay.
'perhaps' indicates anagramming the letters.
'or'+'spite'='orspite'
'orspite' anagrammed gives 'RIPOSTE'.
'showing wit' is the link.
I am not very happy about this link. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for riposte that I've seen before include "Snappy comeback" , "Sally" , "Poster I alter for repartee" , "Quick retort or return hit in fencing" , "Rejoinder" .)