One that's bright surprisingly learnt nothing at first (7)
I believe the answer is:
lantern
'one that's bright' is the definition.
I can't judge whether this defines the answer.
'surprisingly learnt nothing at first' is the wordplay.
'surprisingly' indicates an anagram (a surprising ordering of the letters).
'at first' indicates taking the first letters.
The first letter of 'nothing' is 'n'.
'learnt' with letters rearranged gives 'lanter'.
'lanter'+'n'='LANTERN'
Can you help me to learn more?
(Other definitions for lantern that I've seen before include "Cased lamp" , "Light in a protective casing" , "Lamp with protective transparent casing" , "Enclosed light" , "Light held by 26/27 Across" .)