Crossword Genius

Teacher in coach -- note tension (14)

Ross

I believe the answer is:

schoolmistress

'teacher' is the definition.
(schoolmistress is a kind of teacher)

'coach note tension' is the wordplay.
'coach' becomes 'school' (I've seen this before).
'note' becomes 'mi' (as in 'do re mi').
'tension' becomes 'stress' (synonyms).
'school'+'mi'+'stress'='SCHOOLMISTRESS'

'in' is the link.

(Another definition for schoolmistress that I've seen is " female teacher".)

I've seen this clue in The Telegraph.
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