Divine messenger in London region (5)
I believe the answer is:
angel
'divine messenger' is the definition.
(I've seen this before)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for angel that I've seen before include "One backing plays" , "darling!" , "Theatrical backer" , "Theatre supporter" , "Person of beauty, purity or kindness?" .)