Crossword Genius

Extra pears were used (5)

Ross

I believe the answer is:

spare

I'm a little stuck... Click here to teach me more about this clue!

'extra' is the definition.
(both can mean left over)

'pears were used' is the wordplay.
'pears' anagrams to 'SPARE'.
But, I'm unsure how the anagram is indicated.

Can you help me to learn more?

(Other definitions for spare that I've seen before include "slit at top of trousers in Scotland" , "Thin; left over" , "Additional - for use when needed" , "Extra item just in case" , "Refrain from using" .)

I've seen this clue in The Mirror.
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