Girl and boy wrapping last of durable fabric (7)
I believe the answer is:
nankeen
'fabric' is the definition.
(nankeen is a kind of fabric)
'girl and boy' is the wordplay.
'girl' becomes 'nan'.
'and' says to put letters next to each other.
'boy' becomes 'keen' ().
'nan'+'keen'='NANKEEN'
'wrapping last of durable' is the link.
I am not very happy about this link. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for nankeen that I've seen before include "Buff colour(ed cloth)" , "Buff colour" , "trouser material" , "Buff-coloured cotton fabric" , "Durable yellow cotton fabric, originally from China" .)