Father has name for seductress (5)
I believe the answer is:
siren
'seductress' is the definition.
(I've seen this before)
'father has name' is the wordplay.
'father' becomes 'sire' (synonyms).
'has' is a charade indicator (letters next to each other).
'name' becomes 'n' (common abbreviation e.g. on forms).
'sire'+'n'='SIREN'
'for' is the link.
(Other definitions for siren that I've seen before include "Rinse (anag) - sea nymph" , "Loud warning device" , "Hooter - dangerous woman?" , "Warning device - femme fatale" , "Warning device, alluring woman" .)