Devote (8)
I believe the answer is:
dedicate
'devote' is the definition.
(I know that devote can be written as dedicate)
This is the entire 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" .)