Weapon some strap to their feet (8)
I believe the answer is:
stiletto
'weapon' is the definition.
(stiletto is a kind of weapon)
'some strap to their feet' is the wordplay.
I cannot really understand how this works, but
'to' could be 'til' (I've seen this in another clue) and 'til' is found within the answer.
The remaining letters 'setto' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for stiletto that I've seen before include "A short knife, dagger or heel" , "Dagger; tapered heel" , "Small dagger and high narrow heel" , "Thin dagger; heel" , "Type of heel" .)