A consolatory note? (3)

I believe the answer is:

sol

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

'a consolatory' is the wordplay.
'SOL' is hidden within the letters.
However, I'm not sure how the hidden word is indicated.

Can you help me to learn more?

(Other definitions for sol that I've seen before include "nearby star" , "Note; Peruvian currency" , "Note - colloid - the Sun" , "A Latin sun" , "Roman sun-god" .)

I've seen this clue in the Evening Standard.

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