ATX TKOF WITHOUT CLRNC.

Narrative

WHEN I CALLED GND CTL I STATED; 'WORCESTER GND (OUR ACFT IDENT) TAXI; VFR TO BRADLEY.' SHE RESPONDED BY SAYING; '(ACFT IDENT); TAXI VIA BRAVO FOR INTXN DEP 29.' SHE ALSO ASKED ME PREVIOUS TO THIS IF I REQUIRED FULL LENGTH. I RESPONDED BY SAYING; 'NEGATIVE.' SHE CAME BACK BY SAYING; 'BRAVO INTXN 29 FOR TKOF IS APPROVED.' I RESPONDED BY SAYING; 'CLRD TO GO AT 29?' SHE SAID; 'AFFIRMATIVE;' AFTER I SAID; 'CLRD TO GO 29.' WHEN I MADE MY 45 DEG LEFT TURN FOR DEP; I DECIDED TO CALL TWR FREQ TO ADVISE (WHICH IS NOT REQUIRED). WHEN I CALLED TWR FREQ; A MAN RESPONDED BY SAYING; '(ACFT IDENT); YOU WERE NEVER CLRD FOR TKOF.' THE NEXT DAY MY F/O (NAME) AND I VISITED THE WORCESTER TWR TO SPEAK TO THE CHIEF CTLR. WE LISTENED TO THE TAPE AND I WAS CORRECT; THAT THE GND CTLR ACKNOWLEDGED THAT I WAS 'CLRD TO GO' AT INTXN BRAVO 29. THE CHIEF CTLR SAID THERE WOULD BE NO ACTION TAKEN AGAINST ME AND MY F/O. THE CHIEF CTLR AND MYSELF AGREED THAT THE GND CTLR AND MYSELF USED POOR PHRASEOLOGY. FOR INSTANCE; 'CLRD TO GO;' WHICH IS USED QUITE OFTEN IN AVIATION FOR 'CLRD FOR TKOF.' I WOULD LIKE TO POINT OUT THAT NO ATTEMPT WAS MADE BY TWR OR GND FREQ TO CONTACT ME NOT TO TKOF AT BRAVO INTXN RWY 29. SUPPLEMENTAL INFORMATION FROM ACN 80338: CAPT FLYING ACFT AND OPERATING RADIOS. I ASKED CAPT IF SHE CLRD US FOR TKOF ON GND FREQ. HE SAID YES; AND THAT SHE WAS WORKING BOTH FREQS.