Cruciverbalists put up notice that hurt bright one appearing through mist? (6)
I believe the answer is:
sunbow
'through mist?' is the definition.
The definition suggests a singular noun which matches the answer.
'cruciverbalists put up notice that hurt bright one' is the wordplay.
I cannot quite see how this works, but
'one' could be 'un' (I've seen this in other clues) and 'un' is located in the answer.
'that hurt' could be 'ow' (I've seen this in other clues) and 'ow' is located in the answer.
This explanation may well be incorrect...
'appearing' is the link.
Can you help me to learn more?
(Another definition for sunbow that I've seen is " colourful event".)