Sort of concert regal involving current? (8,5)
I believe the answer is:
electric organ
'sort of concert regal involving current?' is the definition.
I can't judge whether this defines the answer.
'sort of concert regal involving current?' is the wordplay.
'sort of' indicates anagramming the letters.
'involving' indicates putting letters inside.
'current?' becomes 'i' (symbol for electric current).
'concert'+'regal'='concertregal'
'concertregal' is an anagram of 'electrcorgan'.
'electrcorgan' going around 'i' is 'ELECTRIC ORGAN'.
(Other definitions for electric organ that I've seen before include "Keyboard instrument" , "Synthesiser" .)