Committed, devoted (9)
I believe the answer is:
dedicated
I believe this is a double definition.
'committed' is the first definition.
('dedicate' can be a synonym of 'commit')
'devoted' is the second definition.
(synonyms)
(Other definitions for dedicated that I've seen before include "Devoted to a cause or ideal 99)" , "Determined" , "Customised" , "Committed" , "exclusive" .)