Row with hot and cold switched round? (4)
I believe the answer is:
spat
'row' is the definition.
(a spat is a disagreement or argument)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for spat that I've seen before include "Small altercations between Pats" , "Little quarrel - leg wear" , "Old-fashioned legwear" , "Contretemps" , "Quarrel about petty point" .)