Force to be a soldier? (7)

I believe the answer is:

dragoon

I believe this is a double definition.

'force' is the first definition.
(I know that dragoon is a type of force)

'a soldier?' is the second definition.
(dragoon is a kind of soldier)

'to be' is the link.

(Other definitions for dragoon that I've seen before include "[CARIBINEER]?" , "Former heavily-armed cavalryman" , "Cavalry soldier" , "Shanghai" , "Cavalryman; coerce (into doing something)" .)

I've seen this clue in the Evening Standard.

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