Military call and design on the skin (6)
I believe the answer is:
tattoo
'military call and design on the skin' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for tattoo that I've seen before include "Edinburgh show" , "Example of body art" , "that takes some beating?" , "display involving military band" , "Design on skin - military show" .)