Gather it could be an angel (5)
I believe the answer is:
glean
'gather' is the definition.
(I've seen this before)
'it could be an angel' is the wordplay.
'it could be' indicates an anagram (I've seen this in other clues).
'angel' with letters rearranged gives 'GLEAN'.
(Other definitions for glean that I've seen before include "Collect gradually (from various sources)" , "Gather, pick up" , "Gather after reaping" , "Angle for harvest" , "Pick up (information)" .)