Enter a clue or pattern or both:
The Clue
Zip-code assigner: Abbr. (4 letter answer)
The Answer
USPS
Tags
Notes
The answer USPS is seen occasionally, appearing about once every 750 puzzles.
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"We deliver for you" sloganeer: Abbr.
Definition
USPS as a noun:
1. (United States Postal Service, US Postal Service, USPS) = an independent federal agency that provides mail processing and delivery service for individuals and businesses in the United States