Show men road test (11)

I believe the answer is:

demonstrate

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'show' is the definition.
(I know that show can be written as demonstrate)

'men road test' is the wordplay.
'men road test' can be anagrammed to 'DEMONSTRATE'.
However, I am not sure how the anagram is indicated.

Can you help me to learn more?

(Other definitions for demonstrate that I've seen before include "English floozies returning, led by villainous character" , "Review" , "Prove - protest" , "March" , "Prove, show" .)

I've seen this clue in The Irish Independent.

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