Have a spat (5)
I believe the answer is:
argue
'have a spat' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for argue that I've seen before include "Dispute, disagree" , "Fabric hanging in folds" , "Exchange heated views" , "Discuss, contend" , "Heatedly exchange views" .)