Play electronic dance music to entertain limitless Europeans (9)
I believe the answer is:
tolerance
'play' is the definition.
(both can mean room for movement in engineering)
'electronic dance music to entertain limitless europeans' is the wordplay.
'electronic dance music' becomes 'trance' (I can't explain this - if you can you should believe this answer much more).
'to entertain' is an insertion indicator.
'limitless' means to look at the middle letters.
'europeans' becomes 'Poles' (Pole is an example).
The centre of 'poles' is 'ole'.
'trance' placed around 'ole' is 'TOLERANCE'.
Can you help me to learn more?
(Other definitions for tolerance that I've seen before include "Ability to be fair" , "Allowance for dimensional inaccuracy" , "example of permissiveness" , "Allowable variation (in size)" , "Ability to stomach (something)" .)