Is Grandmother interested in making cloth? (7)
I believe the answer is:
nankeen
'cloth?' is the definition.
(I know that nankeen is a type of cloth)
'is grandmother interested in' is the wordplay.
'is grandmother' becomes 'nan' (nan can informally mean a grandmother).
'interested in' becomes 'keen' (I can't justify this - if you can you should give a lot more credence to this answer).
'nan'+'keen'='NANKEEN'
'making' is the link.
Can you help me to learn more?
(Other definitions for nankeen that I've seen before include "Buff-coloured cotton fabric" , "Buff colour" , "Yellowish cotton cloth" , "mustard colour" , "Durable yellow cotton fabric, originally from China" .)