Briefly curdle starter of Manchurian rice dish with aromatic powder (8)
I believe the answer is:
turmeric
'aromatic powder' is the definition.
(I've seen this before)
'briefly curdle starter of manchurian rice dish' is the wordplay.
'briefly' means to remove the last letter.
'curdle' becomes 'turn' (I've seen this in another clue).
'starter of' indicates taking the first letters.
'rice dish' becomes 'eric' (I can't justify this - if you can you should give a lot more credence to this answer).
The first letter of 'manchurian' is 'm'.
'turn' with its last letter taken away is 'tur'.
'tur'+'m'+'eric'='TURMERIC'
'with' acts as a link.
Can you help me to learn more?
(Other definitions for turmeric that I've seen before include "Yellow spice used in curry" , "Yellow aromatic powder used in cooking" , "Spice with yellowing effect" , "kitchen ingredient" , "Condiment that dyes yellow" .)