Determined to correct bad route (8)

I believe the answer is:

obdurate

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

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

'correct bad route' is the wordplay.
'correct' indicates an anagram.
'bad'+'route'='badroute'
'badroute' anagrammed gives 'OBDURATE'.

'to' is the link.

Can you help me to learn more?

(Other definitions for obdurate that I've seen before include "Stubborn, unpersuadable" , "Dogged" , "hard to influence" , "Implacable" , "Stubbornly resistant" .)

I've seen this clue in The Irish Times.

Want a hint initially instead of a full solution? Install my app