Crossword Genius

Military show leaves a permanent impression on one (6)

Ross

I believe the answer is:

tattoo

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'military show' is the definition.
(I've seen this before)

I don't understand the remainder of the clue.

Can you help me to learn more?

(Other definitions for tattoo that I've seen before include "Military call and design on the skin" , "signal to return to base" , "Edinburgh show" , "drawing on arms, perhaps" , "piercing?" .)

I've seen this clue in The Guardian and The Globe and Mail.
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