Crossword Genius

Five hundred beers in part of Yorkshire? (5)

Ross

I believe the answer is:

dales

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'five hundred beers in part of yorkshire?' is the definition.
I can't judge whether this definition defines the answer.

'five hundred beers' is the wordplay.
'five hundred' becomes 'd' (Roman numeral for 500).
'beers' becomes 'ales' (ale is a type of beer).
'd'+'ales'='DALES'

Can you help me to learn more?

(Other definitions for dales that I've seen before include "Leads into poetic valleys" , "(North England) valleys" , "Yorkshire valleys" , "Open river valleys in hilly areas" .)

I've seen this clue in The Times.
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