Bright Adrian warped time (7)
I believe the answer is:
radiant
'bright' is the definition.
(similar in meaning)
'adrian warped time' is the wordplay.
'warped' is an anagram indicator.
'time' becomes 't' (abbreviation).
'adrian' with letters rearranged gives 'radian'.
'radian'+'t'='RADIANT'
(Other definitions for radiant that I've seen before include "glowing with happiness" , "Bright" , "Resplendent" , "Straight line" , "'Glorious, shining (7)'" .)