Capped squirrel far from stable (5)
I believe the answer is:
rocky
'stable' is the definition.
Both the definition and answer are adjectives. Maybe there's an association between them I don't understand?
'capped squirrel far' is the wordplay.
I cannot really see how this works, but
'squirrel' could be 'rock' (rock squirrel is a kind of squirrel) and 'rock' is located in the answer.
A single letter 'y' remains which might be clued in a way I don't understand.
This explanation may well be incorrect...
'from' is the link.
Can you help me to learn more?
(Other definitions for rocky that I've seen before include "Unstable; stony" , "fighter making many comebacks" , "Uneven" , "Characterised by large stones" , "'-' Marciano, US boxer" .)