At the end of dance, it's amusing to squeeze leg — careful! (10)
I believe the answer is:
economical
'careful' is the definition.
(I've seen this before)
'at the end of dance it's amusing to squeeze leg' is the wordplay.
I cannot really understand how this works, but
'at' could be 'on' (location) and 'on' is present in the answer.
'of' could be 'o' and 'o' is present in the answer.
'it' could be 'e' ('e' can mean 'electronic' which is similar to 'IT') and 'e' is found within the answer.
This may be the basis of clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for economical that I've seen before include "Thrifty" , "Money-saving" , "Cheap" , "Reasonable" , "Careful" .)