Devilishly enchanting concertina playing Mike interrupts (11)
I believe the answer is:
necromantic
'devilishly enchanting' is the definition.
I can't judge whether this definition defines the answer.
'concertina playing mike interrupts' is the wordplay.
'playing' indicates anagramming the letters.
'mike' becomes 'M' (phonetic alphabet: alpha, bravo, charlie etc.).
'interrupts' is an insertion indicator.
'concertina' is an anagram of 'necroantic'.
'necroantic' placed around 'm' is 'NECROMANTIC'.
Can you help me to learn more?
(Other definitions for necromantic that I've seen before include "witchcraft being practised?" , "of black magic" , "dead magical" .)