14 across
Composer
of
divertimento
managed
without
it
(10)
Composer of divertimento managed without it (10)
hints
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0
hints
The definition is at the beginning of the clue.
How the clue works
Right, so Composer is your definition there, pointing us at the Italian chap Monteverdi. Now take "divertimento" and whip out the letters "it" (that's your "without it"), and you're left with ten letters — "managed" is the anagram indicator telling you to shuffle those remaining letters into MONTEVERDI.