Crossword Genius

Teams represented by band getting the upper hand (9)

Ross

I believe the answer is:

mastering

'getting the upper hand' is the definition.
(mastering or overpowering someone)

'teams represented by band' is the wordplay.
'represented by' indicates anagramming the letters.
'band' becomes 'ring' (a ring is a band of metal).
'teams' anagrammed gives 'maste'.
'maste'+'ring'='MASTERING'

I've seen this clue in The Guardian.
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