Devote (8)
I believe the answer is:
dedicate
'devote' is the definition.
(synonyms)
This is all the clue.
(Other definitions for dedicate that I've seen before include "Devote (to), pledge (to)" , "Inscribe or give over to" , "Devote, address, to" , "Address (eg, a book to a person)" , "Commit" .)