Dizzy etc with sumo wrestling, gets gear for a different sport (8,7)
I believe the answer is:
swimming costume
'gear for a different sport' is the definition.
I can't judge whether this defines the answer.
'dizzy etc with sumo wrestling' is the wordplay.
'dizzy' becomes 'swimming'.
'with' means one lot of letters go next to another.
'wrestling' indicates anagramming the letters.
'etc'+'sumo'='etcsumo'
'etcsumo' anagrammed gives 'costume'.
'swimming'+'costume'='SWIMMING-COSTUME'
'gets' is the link.
(Other definitions for swimming costume that I've seen before include "Item of beachwear" , "skimpy garment" , "bathers" , "going on in baths?" .)