Unconcealed (4)
'unconcealed' is the definition.
(similar in meaning)
This is the entire clue.
(Other definitions for open that I've seen before include "Not closed or secret" , "With which to offer hearty welcome" , "Undo; ajar" , "Undecided" , "Unrestricted; ready for business" .)
'unconcealed' is the definition.
(associated in meaning)
This is all the clue.
(Other definitions for overt that I've seen before include "This is not hard to see" , "Done or shown openly" , "Openly displayed" , "Conspicuous" , "Open,up front" .)