AIRDROP

Set to 3 different clues across 3 published puzzles, most often “Certain plane delivery” — The New York Times, Wednesday, 19 January 2011.

7 letters

Every clue on record, most used first

Certain plane deliveryonce
The New York Times — Wednesday, 19 January 2011
Help from on highonce
The New York Times — Sunday, 15 October 2006
Unconventional delivery of suppliesonce
The New York Times — Friday, 11 June 2004