Crossword Puzzle One over two

Clue: One over two

With an overly high opinion of oneself (PROUDASAPEACOCK with 15 letters)
Condition of overworking oneself to keep up with the wealthy (AFFLUENZA with 9 letters)
Onetime overseas trade grp. (EEC with 3 letters)
Overextend oneself? (STRETCH with 7 letters)
When Operation Overlord began (DDAY with 4 letters)
Overeats (STUFFS with 6 letters)
Vivid twosome (VEES with 4 letters)
Hid oneself, ungrammatically (LAIDLOW with 7 letters)
Overstate one's case (BRAG with 4 letters)
From overseas? (e.g. DES with 3 letters)