Crossword Genius

Son cuts reeds (5)

Ross

I believe the answer is:

saxes

'reeds' is the definition.
(sax is a kind of reed)

'son cuts' is the wordplay.
'son' becomes 's' (genealogical abbreviation for son).
'cuts' becomes 'axes' (both can mean to cancel or dismiss).
's'+'axes'='SAXES'

I've seen this clue in The Independent.
Want a hint initially instead of a full solution? Install my app