Tiff (4)

I believe the answer is:
spat
'tiff' is the definition.
(I know that tiff can be written as spat)
This is all the clue.
(Other definitions for spat that I've seen before include "A minor dispute or row" , "Spoke violently" , "angry words" , "Gestured with contempt" , "Taps in a small quarrel" .)