Crossword Genius

On TV, is he a square? (6)

Ross

I believe the answer is:

albert

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'a square?' is the definition.
Both the definition and answer are singular nouns.
Perhaps you can see an association between them that I can't see?

'on tv is he' is the wordplay.
'on tv' becomes 'al' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'is he' becomes 'Bert'.
'al'+'bert'='ALBERT'

Can you help me to learn more?

(Other definitions for albert that I've seen before include "M [MUSEUM] with 18 [VICTORIA]" , "Victoria's partner" , "Short kind of watch-chain" , "London bridge, Memorial" , "Prince of Monaco" .)

I've seen this clue in the Evening Standard.
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