Crossword Genius

Didn’t harm the colour below the mineral spring (6)

Ross

I believe the answer is:

spared

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

'didn't harm the' is the definition.
I can't judge whether this definition defines the answer.

'colour below the mineral spring' is the wordplay.
'colour' becomes 'red' (red is a kind of colour).
'below' is a charade indicator (letters next to each other) (in a down clue, some letters go below others).
'the mineral spring' becomes 'spa' (I've seen this before).
'red' after 'spa' is 'SPARED'.

Can you help me to learn more?

(Other definitions for spared that I've seen before include "Saved" , "did without" , "Dealt leniently with" , "Refrained from hurting, was merciful towards" , "Avoided incurring" .)

I've seen this clue in the Sydney Morning Herald.
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