Brave person gives girl ring (4)
I believe the answer is:
hero
'brave person' is the definition.
(I've seen this before)
'girl ring' is the wordplay.
'girl' becomes 'her' ('her' refers to a girl or woman).
'ring' becomes 'O' (letter resembling a ring).
'her'+'o'='HERO'
'gives' acts as a link.
(Other definitions for hero that I've seen before include "Admired champion" , "Main protagonist" , "object of adulation" , "Leander's love" , "Valiant man" .)