Smartie from vividly coloured box kid's opening (6,5)
I believe the answer is:
bright spark
'smartie from vividly coloured' is the definition.
I don't know anything about this answer so I can't tell whether this works.
'box kid's opening' is the wordplay.
I cannot really see how this works, but
'box' could be 'ark' (ark is a kind of box) and 'ark' is found within the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for bright spark that I've seen before include "Lively and clever individual" , "ironically, one that's witty" , "One full of ideas" , "one who has many good ideas" , "Clever person" .)
