He often scored century, like a star (8)
I believe the answer is:
casanova
'he often scored' is the definition.
(famous seducer of women)
'century like a star' is the wordplay.
'century' becomes 'C' (common abbreviation).
'like' becomes 'as'.
'star' becomes 'nova' (nova is a kind of star).
'c'+'as'+'a'+'nova'='CASANOVA'
(Other definitions for casanova that I've seen before include "Notorious Italian womaniser of 18th century" , "Legendary Italian womaniser" , "Man with reputation as lover of many women" , "Italian adventurer, wrote vivid accounts of his amorous encounters" , "Legendary lover" .)