Crossword Genius

Opera gig playing musical exercise (8)

Ross

I believe the answer is:

arpeggio

I'm a little stuck... Click here to teach me more about this clue!

'musical exercise' is the definition.
Although both the answer and definition are singular nouns, I don't understand how they can define each other.

'opera gig playing' is the wordplay.
'playing' is an anagram indicator.
'opera'+'gig'='operagig'
'operagig' is an anagram of 'ARPEGGIO'.

Can you help me to learn more?

(Other definitions for arpeggio that I've seen before include "Notes of a chord played in rapid succession" , "Notes played in quick succession" , "Piano exercise" , "Split chord" , "Notes of a musical chord played in succession" .)

I've seen this clue in The Telegraph.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.