Some lines soldier dropped in (4)

I believe the answer is:

para

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'soldier dropped in' is the definition.
(paratrooper, a soldier dropped into a war zone)

I don't understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for para that I've seen before include "Air-drop soldier" , "Airdropped soldier" , "Brazilian state" , "Soldier dropping to earth" , "Soldier that jumps from planes" .)

I've seen this clue in The Sun.

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