A white in Delhi goes after primarily nifty yarn (6)
I believe the answer is:
angora
'yarn' is the definition.
(I've seen this before)
'a white in delhi goes after primarily nifty' is the wordplay.
I cannot really understand how this works, but
'a' could be 'an' and 'an' is found within the answer.
This may be the basis of clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for angora that I've seen before include "A groan from a goat" , "Wool from hair of goats" , "Breed of rabbit or cat, the former name for the Turkish capital" , "Fabric from animal hair" , "Fabric made from goat or rabbit hair" .)