Plenty of hair coiled round into a twist? (9)
I believe the answer is:
abundance
'plenty of hair' is the definition.
'abundance' can be an answer for 'plenty' (I've seen this before). I'm unsure of the 'of hair' bit.
'coiled round into a twist?' is the wordplay.
'coiled round' becomes 'bu' (I can't explain this - if you can you should give a lot more credence to this answer).
'into' means one lot of letters goes inside another.
'a' becomes 'an'.
'twist?' becomes 'dance' (twisting is a kind of dancing).
'bu' put into 'an' is 'abun'.
'abun'+'dance'='ABUNDANCE'
Can you help me to learn more?
(Other definitions for abundance that I've seen before include "'Plenty, loads (9)'" , "Danube can flow with plenty" , "Profusion, richness" , "A good deal" , "Large amount, sometimes more than is needed" .)