Better to leave case behind and walk (5)
I believe the answer is:
amble
'walk' is the definition.
(I know that amble is a type of walk)
'better to leave case' is the wordplay.
'better' becomes 'amb' (I can't explain this - if you can you should believe this answer much more).
'to' means one lot of letters go next to another.
'case' says to hollow out the word (remove centre letters).
'leave' with its centre taken out is 'le'.
'amb'+'le'='AMBLE'
'behind and' is the link.
This may not be correct. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for amble that I've seen before include "Dawdle" , "Walk gently" , "Toddler does this" , "Wander gently along" , "Blame (anag.)" .)