Youth given rise restricting state benefit (10)
I believe the answer is:
adolescent
'youth' is the definition.
(an adolescent is a young person)
'rise restricting state benefit' is the wordplay.
'rise' becomes 'ascent' (synonyms).
'restricting' indicates putting letters inside.
'state benefit' becomes 'dole' (informal term for a state benefits).
'ascent' enclosing 'dole' is 'ADOLESCENT'.
'given' acts as a link.
(Other definitions for adolescent that I've seen before include "juvenile" , "Youth" , "sixth-former, say" , "One growing" , "Immature" .)