Father an enchantress with no name (4)
I believe the answer is:
sire
'father' is the definition.
(I know that father can be written as sire)
'an enchantress with no name' is the wordplay.
'an enchantress' becomes 'siren' (synonyms).
'with no' suggests deleting specific letters.
'name' becomes 'n' (common abbreviation e.g. on forms).
'siren' with 'n' removed is 'SIRE'.
(Other definitions for sire that I've seen before include "Male parent of an animal" , "Make children" , "Stallion; beget" , "Ancestor" , "Rise for male parent (4)." .)