Coming in to arrange licence dealing with spirits (7)
I believe the answer is:
angelic
'dealing with spirits' is the definition.
(relating to heavenly spirits)
'coming in to arrange licence' is the wordplay.
'coming in' indicates the answer is hidden within the clue.
'ANGELIC' is hidden in the letters of 'to arrange licence'.
(Other definitions for angelic that I've seen before include "sweet-natured too" , "Virtuous" , "in the manner of Gabriel?" , "Of innocent beauty" , "Very well behaved" .)