School crooner bored by the French director (11)

I believe the answer is:

schlesinger

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'director' is the definition.
Both the definition and answer are singular nouns.
Maybe there's an association between them I don't understand?

'school crooner bored by the french' is the wordplay.
'school' becomes 'sch' (abbreviation).
'crooner' becomes 'singer' (I've seen this before).
'bored by' means one lot of letters goes inside another (to bore something can mean to drill into it).
'the french' becomes 'le' ('the' in French).
'sch'+'singer'='schsinger'
'schsinger' placed around 'le' is 'SCHLESINGER'.

Can you help me to learn more?

I've seen this clue in The Independent.

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