Crossword Genius

Building block (5)

Ross

I think it could be either:

Which length description are you looking for?:

4

5

brick

'building block' is the definition.
(I've seen this before)

This is all the clue.

(Other definitions for brick that I've seen before include "Building unit?" , "Clay building block" , "Baked clay" , "Building material" , "Reliable person" .)

I've seen this clue in The Telegraph, the Evening Standard, The Independent, the Universal, The Times and The Mirror.
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