Approach height needing time for line (8)

I believe the answer is:

attitude

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'approach' is the definition.
(thesaurus)

I cannot understand how the rest of the clue works.

(Other definitions for attitude that I've seen before include "Settled way of thinking" , "Haigha's showed typical Anglo-Saxon" , "Position, stance on matter" , "Settled way of thinking/feeling" , "Way of thinking or feeling about something" .)

I've seen this clue in The Telegraph.

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