Military display (6)
'military display' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for tattoo that I've seen before include "Pointedly design" , "paraded?" , "Military evening signal" , "Military display - needlework!" , "Military display - skin design" .)
(Other definitions for parade that I've seen before include "Ostentation" , "March-past of troops etc." , "'Procession of bands, floats, etc (6)'" , "Show - display" , "Air - display" .)
(Other definitions for tourney that I've seen before include "competitive event" , "US sports event" , "Competition" .)