Crossword Genius

He took the wrong course and got shipwrecked (6)

Ross

I believe the answer is:

crusoe

I'm a little stuck... Click here to teach me more about this clue!

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

'wrong course and got shipwrecked' is the wordplay.
'course' anagrams to 'CRUSOE'.
But, I'm unsure how the anagram is indicated.

'the' acts as a link.

Can you help me to learn more?

(Other definitions for crusoe that I've seen before include "Abandoned" , "See 9" , "Daniel Defoe's castaway" , "Robinson . . . . . . was a famous fictional castaway" , "Defoe's hero derived" .)

I've seen this clue in the Evening Standard.
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