Crossword Genius

Projection of sentimental stuff suiting the nobs? (5)

Ross

I believe the answer is:

cornu

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'projection' is the definition.
Both the definition and answer are singular nouns.
Perhaps they are linked in a way I don't understand?

'sentimental stuff suiting the nobs?' is the wordplay.
'sentimental stuff' becomes 'corn' (corn or corniness can mean sentimental material).
'suiting the nobs?' becomes 'u' (I am not sure about this - if you are sure you should believe this answer much more).
'corn'+'u'='CORNU'

'of' is the link.

Can you help me to learn more?

(Other definitions for cornu that I've seen before include "Outgrowth" , "Hornblower may want it?" , "In anatomy, any horn-shaped structure" .)

I've seen this clue in The Times.
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