Actor Davenport (5)
I believe the answer is:
'actor davenport' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for nigel that I've seen before include "Sir - - Hawthorne, actor" , "Fellows sometimes called this" , "-- Kennedy, violinist" , "__ Mansell, 1992 F1 champion" , "--- Pargetter, (Archers)" .)