A hostile bang smashed by champion tennis player (6,6)

I think it could be either:

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6,6

althea gibson

'champion tennis player' is the definition.
(US tennis player, 1927-2003)

'a hostile bang smashed' is the wordplay.
'smashed' indicates anagramming the letters.
'hostile'+'bang'='hostilebang'
'hostilebang' anagrammed gives 'ltheagibson'.
'a'+'ltheagibson'='ALTHEA GIBSON'

'by' acts as a link.

I've seen this clue in The Guardian.

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