Crossword Genius

Uproar about a fashionable black emblem used for the NHS (7)

Ross

I believe the answer is:

rainbow

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

'emblem used for the nhs' is the definition.
(rainbows can represent the National Health Service)

'uproar about a fashionable black' is the wordplay.
'uproar' becomes 'row' (I've seen this in another clue).
'about' indicates putting letters inside.
'a fashionable' becomes 'ain' (I can't explain this - if you can you should give a lot more credence to this answer).
'black' becomes 'b' (as in pencil classifications).
'ain'+'b'='ainb'
'row' enclosing 'ainb' is 'RAINBOW'.

Can you help me to learn more?

(Other definitions for rainbow that I've seen before include "Light effect in sky" , "Natural multicoloured arc" , "Coloured arc in the sky" , "weather feature" , "colours in the sky" .)

I've seen this clue in The Times.
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