Sir Nigel ordered wine (8)
I believe the answer is:
riesling
'wine' is the definition.
(Riesling is an example)
'sir nigel ordered' is the wordplay.
'ordered' is an anagram indicator.
'sir'+'nigel'='sirnigel'
'sirnigel' anagrammed gives 'RIESLING'.
(Other definitions for riesling that I've seen before include "Aromatic white wine from the Rhine valley" , "Fragrant white wine from the Rhine valley or from California" , "Strange wine for Sir Ingle" , "Dry white wine (German)" , "Sir Ingle makes wine from this grape" .)