Also FE firedog (7)
I believe the answer is:
andiron
'firedog' is the definition.
(synonyms)
'also fe' is the wordplay.
'also' becomes 'and' (both can mean in addition).
'fe' becomes 'iron' (synonyms).
'and'+'iron'='ANDIRON'
(Other definitions for andiron that I've seen before include "Dog" , "Stand by the fire" , "Fireplace metalwork" , "Fireplace log supporter" , "fire supporter?" .)