Crossword Genius

Hide missing note: it’s froth (6)

Ross

I believe the answer is:

lather

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

This might be a double definition.

'hide missing note' is the first definition.
'lather' can be an answer for 'hide' (thesaurus). I am unsure of the 'missing note' bit.

'froth' is the second definition.
(lathering is a kind of frothing)

'it's' is the link.

Can you help me to learn more?

(Other definitions for lather that I've seen before include "Froth produced by soap" , "Whip up froth - tizzy" , "Froth formed by soap and water" , "starting to run in a sweat" , "Foam - tizzy (informal)" .)

I've seen this clue in The Times.
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