"____ Fe" (5)
'fe' is the definition.
(synonyms)
This is all the clue.
(Other definitions for iron that I've seen before include "Strong metal; golf club" , "Revolver" , "Press - element" , "The one who was 'not for turning'" , "Club to smooth the cloth" .)
(Other definitions for santa that I've seen before include "patron at Christmas" , "Christmas visitor" , "Children's name for Mr Claus" , "bringer of gifts" , "Present bringer" .)