Played smoothly to leg, maybe, out of the middle of the bat (6)
I believe the answer is:
legato
'played smoothly' is the definition.
(I've seen this in another clue)
'to leg maybe out of the middle of the bat' is the wordplay.
'maybe' indicates anagramming the letters.
'out of' means one lot of letters goes inside another (some letters on the outside of others).
'the middle of' means to look at the middle letters.
The middle of 'bat' is 'a'.
'to'+'leg'='toleg'
'toleg' is an anagram of 'legto'.
'legto' enclosing 'a' is 'LEGATO'.
(Other definitions for legato that I've seen before include "Smoothly-flowing" , "Don't play roughly" , "In a smooth and flowing manner (music)" , "Played smoothly" , "running into each other" .)