EXIM

Set to 2 different clues across 2 published puzzles, most often “___ Bank (U.S. loan guarantor)” — The New York Times, Saturday, 10 February 2007.

4 letters

Every clue on record, most used first

___ Bank (U.S. loan guarantor)once
The New York Times — Saturday, 10 February 2007
U.S. bank established in 1934, informallyonce
The New York Times — Saturday, 3 September 2005