Spice is something extracted for an Indian (9)
I believe the answer is:
fenugreek
'spice' is the definition.
The definition and answer can be both things that one consumes for nourishment as well as being singular nouns.
Maybe you can see an association between them that I don't see?
'something extracted for an indian' is the wordplay.
I cannot really understand how this works, but
'indian' could be 'ree' (I've seen this in another clue) and 'ree' is found within the answer.
This explanation may well be incorrect...
'is' acts as a link.
(Other definitions for fenugreek that I've seen before include "Plant with seeds used for flavouring" , "Spice plant" , "spice-producing plant" .)