Item attached to boot to walk uphill (6)
I believe the answer is:
toecap
'item attached to boot' is the definition.
I can't judge whether this definition defines the answer.
'to walk uphill' is the wordplay.
'walk' becomes 'pace' (pacing is a kind of walking).
'uphill' says the letters should be written in reverse (in a down clue, letters go up).
'pace' written backwards gives 'ecap'.
'to'+'ecap'='TOECAP'
Can you help me to learn more?
(Other definitions for toecap that I've seen before include "Protective cover on boot or shoe" , "part of Oxford, perhaps" , "Boot or shoe item" , "part of footwear" , "Tip of shoe" .)