As the operator of a small plane, and sometimes operating out of large airports(visual or common IFR, no CAT), I have often heard; "Bonanza xxxxx cleared for takeoff, no delay". Since I'm generally in the way at PHX, or SAN or SJC I take no umbridge in the ATC wanting me up and moving so Real Planes can resume operation.
I can't say I've ever heard "no delay" used with the bigger metal and if it's even in ICAO phraseology or just a warning to me to GTFO now. What about 'immediate takeoff'? Or, 'expedite takeoff'? Of course this does not include the violation of the CAT III obstruction of the transmit antenna by the SWA.