Very strange riotous person who is highly skilled (8)
I believe the answer is:
virtuoso
'skilled' is the definition.
(similar in meaning)
'very strange riotous' is the wordplay.
'very' becomes 'v' (abbreviation).
'strange' indicates anagramming the letters.
'riotous' anagrammed gives 'irtuoso'.
'v'+'irtuoso'='VIRTUOSO'
'person who is highly' is the link.
This may not be correct. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for virtuoso that I've seen before include "A consummate master of technique and artistry on a musical instrument" , "Great musical performer" , "One has exceptional musical skill" , "Musician who's dazzlingly skilled" , "Musician with exceptional technique" .)