Geography book (5)

I believe the answer is:

atlas

'geography book' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for atlas that I've seen before include "Collection of maps" , "Geographical book" , "Ballistic missile" , "Sky-toting Titan" , "African mountain range" .)

I've seen this clue in the Evening Standard.

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