Inventor agreed to obstruct Olympian (10)

I believe the answer is:

archimedes

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

'inventor' is the definition.
(I know this)

I can't explain the rest of the clue.

(Other definitions for archimedes that I've seen before include "Old mathematician" , "Greek mathematician and inventor" , "Man of principle" , "Ancient Greek mathematician/inventor" , "Old scientist" .)

I've seen this clue in The Times.

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