16 across
Diagrams
describe
Number
10’s
vehicles
(8)
Diagrams describe Number 10’s vehicles (8)
hints
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checks
0
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The definition is at the end of the clue.
How the clue works
The definition is vehicles, giving CHARIOTS. The wordplay has CHARTS (meaning "diagrams") wrapping around IO — which represents "Number 10" since IO is 10 in a less common reading (I=1, O=0). CHARTS placed around IO gives CH-AR-IO-TS, spelling out CHARIOTS. "Describe" is the container indicator, telling you that CHARTS goes around IO.