Lose knack when unwinding some hose (5,4)

I believe the answer is:

ankle sock

I'm a little stuck... Click here to teach me more about this clue!

'hose' is the definition.
(I know that ankle sock is a type of sock)

'lose knack when unwinding' is the wordplay.
'when unwinding' indicates an anagram.
'lose'+'knack'='loseknack'
'loseknack' anagrammed gives 'ANKLE SOCK'.

'some' is the link.
I am not very happy about this link. It may be part of another bit of the clue.

Can you help me to learn more?

(Another definition for ankle sock that I've seen is " footwear".)

I've seen this clue in The Irish Times.

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