Crossword Genius

In reserve (5)

Ross

There are a few possibilities for this:

'in reserve' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for spare that I've seen before include "show mercy" , "Refrain from using" , "Leftover" , "Additional - for use when needed" , "Excess to requirements" .)

I've seen this clue in the Sydney Morning Herald, the Evening Standard, The New York Times, The Star Tribune, The Sun, the LA Times, the Newsday and the Penny Press.
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