The most common and most likely answer to this crossword clue is the 9 letter word FENUGREEK
I've seen this crossword clue in The Guardian
F
E
N
U
G
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Buddy explains!
The straight part
We know that "Spice/something extracted for an Indian" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case spice/something extracted for an indian = fenugreek.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does FENUGREEK mean?
FENUGREEK noun- Any of the species leguminous plant, Trigonella foenum-graecum, eaten as a vegetable and with seeds used as a spice.
- The seeds of this plant, used as a spice (especially in Indian and Thai cooking).