Breaks a leg to play on without a pause (6)

I believe the answer is:

legato

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'play on without a pause' is the definition.
I can't judge whether this definition defines the answer.

'breaks a leg to' is the wordplay.
'breaks' means one lot of letters goes inside another.
'leg'+'to'='legto'
'a' going within 'legto' is 'LEGATO'.

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(Other definitions for legato that I've seen before include "In music, in a smooth even manner" , "Smoothly flowing (music)" , "Got ale (anag.)" , "scored smoothly" , "Smoothly, musically speaking" .)

I've seen this clue in The Globe and Mail.

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