Place is in complete shade (6)
I believe the answer is:
purple
'shade' is the definition.
(I've seen this before)
'place is in complete' is the wordplay.
I cannot quite see how this works, but
'place' could be 'pl' (abbreviation used in postal addresses) and 'pl' is present in the answer.
The remaining letters 'pure' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for purple that I've seen before include "shade" , "Red and blue mix" , "Colour obtained from mixing red with blue" , "Colour of the angry" , "Mixture of red and blue" .)