Expand a nutmeg recipe (7)
I believe the answer is:
augment
'expand' is the definition.
(I've seen this before)
'a nutmeg recipe' is the wordplay.
'recipe' indicates anagramming the letters.
'nutmeg' is an anagram of 'ugment'.
'a'+'ugment'='AUGMENT'
(Other definitions for augment that I've seen before include "Supplement" , "Make greater in size, number, etc." , "Swell" , "Enlarge or increase" , "get longer" .)