I heard a common pet’s expensive in Paris for anybody who’s striking (10)

'anybody who's striking' is the definition.
(someone who catches an admirer's eye)

'i heard a common pet's expensive in paris' is the wordplay.
'heard' shows a homophone (sound like).
'a common pet' becomes 'cat' (I've seen this before).
'expensive in paris' becomes 'cher' ('expensive' in French).
'i' is a homophone of 'eye'.
'eye'+'cat'+'cher'='EYECATCHER'

'for' acts as a link.