Central fund gets involved in cut — that's really bright (6)
I believe the answer is:
sunlit
'really bright' is the definition.
'sunlit' can be an answer for 'bright' (similar in meaning). I am not sure about the 'really' bit.
'central fund gets involved in cut' is the wordplay.
'central' indicates the central letters.
'gets involved in' means one lot of letters goes inside another.
'cut' becomes 'slit' (slitting is a kind of cutting).
The centre of 'fund' is 'un'.
'un' inserted inside 'slit' is 'SUNLIT'.
'that's' acts as a link.
Can you help me to learn more?
(Other definitions for sunlit that I've seen before include "Provided with illumination, naturally" , "Brightly illuminated" , "Bright with solar illumination" , "Illuminated from 93,000,000 miles away" , "In full daylight" .)