Crossword Genius

Paver's standard weight

Ross

I believe the answer is:

flagstone

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

'standard weight' is the wordplay.
'standard' becomes 'flag' (I've seen this before).
'weight' becomes 'stone' (stone is a kind of weight).
'flag'+'stone'='FLAGSTONE'

Can you help me to learn more?

(Other definitions for flagstone that I've seen before include "Fine-textured rock" , "Paving slab" , "One walked on" , "It'll lay (some say) at ground level" , "Paving-slab" .)

I've seen this clue in The Daily Mail.
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