Baby's dummy (8,4)
I believe the answer is:
teething ring
'baby's dummy' is the definition.
(synonyms)
This is the entire clue.
(Other definitions for teething ring that I've seen before include "Chewed-upon item for an infant" , "Something of comfort to little babies?" , "Comforter for an infant to bite on" , "Something for the very young to bite -- getting her in (anag)" , "Thing bitten on by a baby" .)