Person orchestrating hypnotism set to start with suspect (10)

I believe the answer is:

symphonist

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'person orchestrating' is the definition.
I can't tell whether this defines the answer.

'hypnotism set to start with suspect' is the wordplay.
'to start with' says to take the initial letters.
'suspect' indicates an anagram (a suspicious or unusual spelling).
The initial letter of 'set' is 's'.
'hypnotism'+'s'='hypnotisms'
'hypnotisms' anagrammed gives 'SYMPHONIST'.

Can you help me to learn more?

(Another definition for symphonist that I've seen is " Eg, Beethoven".)

I've seen this clue in The Times.

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