A fast train, say (7)

I believe the answer is:

express

I believe this is a double definition.

'a fast train' is the first definition.
(an express train)

'say' is the second definition.
(to express something is to say it)

(Other definitions for express that I've seen before include "Intimate - squeeze out" , "Fast - state - train" , "Of train, travelling rapidly with few or no stops" , "Squeeze out - quick" , "haste" .)

I've seen this clue in The Times.

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