Son Pete upset with dance (3,4)
I believe the answer is:
one step
'dance' is the definition.
(I know this)
'son pete upset' is the wordplay.
'upset' indicates anagramming the letters.
'son'+'pete'='sonpete'
'sonpete' anagrammed gives 'ONE-STEP'.
'with' is the link.
(Other definitions for one step that I've seen before include "It's a measure" , "that was enough for Newman?" , "short distance" , "4 [DANCE]" .)