Somebody else's henna? (3)
I believe the answer is:
dye
'henna?' is the definition.
(henna is a kind of dye)
'somebody else's' is the wordplay.
'DYE' is hidden in amongst the letters.
But, I am unsure how this is indicated.
Can you help me to learn more?
(Other definitions for dye that I've seen before include "Hair colouring" , "Liquid used to change colour of clothes" , "Tint" , "Colouring; sounds like fade" , "Colour by dipping in liquid" .)