Adventurous sweetheart dropped line (6)

I believe the answer is:

daring

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'adventurous' is the definition.
('daring' can be similar in meaning to 'adventurous')

I don't understand how the remainder of the clue works.

(Other definitions for daring that I've seen before include "Risky" , "Derring-do" , "Risque" , "Audacious, bold" , "A grind (anag.)" .)

I've seen this clue in The Guardian.

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