Changing course he was shipwrecked (6)

I believe the answer is:

crusoe

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'he was shipwrecked' is the definition.
The definition suggests a singular noun which matches the answer.

'changing course' is the wordplay.
'changing' indicates anagramming the letters.
'course' anagrammed gives 'CRUSOE'.

Can you help me to learn more?

(Other definitions for crusoe that I've seen before include "Shipwreck victim" , "Robinson . . . . . . was a famous fictional castaway" , "Shipwrecked hero" , "Daniel Defoe's castaway" , "Robinson -, (Defoe's castaway)" .)

I've seen this clue in The Globe and Mail.

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