Minor difficulty with power cut (5)
I believe the answer is:
light
'minor' is the definition.
(thesaurus)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for light that I've seen before include "answer to clue" , "Easily lifted" , "Form of radiation - not serious" , "not overburdened" , "Opposite of dark" .)