18 Greens,
Yes, you're quite right.
ICAO took the opportunity to tidy up quite a few RFT phraseology anomalies, not just those that came directly from the Tenerife tragedy.
'Clear' and 'takeoff' as already mentioned above. Also, a number of other words introduced where 'clear' or 'cleared' were used, mainly 'approved' as in 'pushback approved'.
'Affirm' so that it couldn't be confused with 'negative' if the first part of the word goes missing. if you just heard '-ative' prior to this, you'd not have a clue as to whether or not they meant 'yes' or 'no'!
'Go ahead' went to be replaced by 'pass your message', so that the unique safety-critical phrase 'go around' couldn't be confused.
'Say again' instead of 'repeat'. Apparently, in the military, 'repeat' means 'put another round of ordnance where you put the last one'.
There's more. Look in CAP 413.
Unfortunately, there's much more to do, particularly around the holding points and entering the runway. Differences between US and the rest of the World are still causing confusion and runway incursions, the current 'hot topic'.
Cheers,
TheOddOne