Awfully huge robin, one close to you (9)
I believe the answer is:
neighbour
'one close to you' is the definition.
(someone living near to you)
'awfully huge robin' is the wordplay.
'awfully' indicates anagramming the letters.
'huge'+'robin'='hugerobin'
'hugerobin' with letters rearranged gives 'NEIGHBOUR'.
(Other definitions for neighbour that I've seen before include "one located nearby" , "One living near" , "Such a one might help out" , "One at your side" , "Huge Robin (anag.)" .)