A wobbly Israeli on top of trapeze? (9)

I believe the answer is:

aerialist

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'a wobbly israeli on top of trapeze?' is the definition.
Although both the answer and definition are singular nouns, I don't understand how they can define each other.

'a wobbly israeli on top of trapeze?' is the wordplay.
'wobbly' indicates anagramming the letters (I've seen this in other clues).
'on top of' says to take the initial letters.
The initial letter of 'trapeze' is 't'.
'israeli' is an anagram of 'erialis'.
'a'+'erialis'+'t'='AERIALIST'

Can you help me to learn more?

(Other definitions for aerialist that I've seen before include "skier" , "trapeze artist" , "Highly-regarded performer" , "Trapeze acrobat" .)

I've seen this clue in The Telegraph.

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