Guacamole blitzed - when fellow plugs that blender in? (10)
I believe the answer is:
camouflage
'guacamole blitzed when fellow plugs that blender in?' is the definition.
The definition suggests a singular noun which matches the answer.
This is all the clue.
Can you help me to learn more?
(Other definitions for camouflage that I've seen before include "blind" , "Method of blending in fine" , "Disguise (from enemy)" , "Green and brown on a green and brown background, say?" , "Disguise by use of colour, patterns etc" .)