Is it knitted with wire wool? (5,6)
I believe the answer is:
cable stitch
'is it knitted' is the definition.
I can't judge whether this defines the answer.
'with wire wool?' is the wordplay.
'with' means one lot of letters go next to another.
'wire' becomes 'cable' (synonyms).
'wool?' becomes 'stitch' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'cable' put next to 'stitch' is 'CABLE STITCH'.
Can you help me to learn more?
(Other definitions for cable stitch that I've seen before include "Aran feature" , "Twisted rope design" , "knitting pattern" , "Knitting that's twisted" .)