Crossword Genius

Sort out a profit -- one grand, possibly (10)


I believe the answer is:

'grand possibly' is the definition.
(grand is a kind of pianoforte)

'sort out a profit one' is the wordplay.
'sort out' indicates anagramming the letters.
'aprofitone' is an anagram of 'PIANOFORTE'.

(Other definitions for pianoforte that I've seen before include "Joanna", "Keyboard instrument", "might be grand".)

I've seen this clue in The Telegraph.