Top-quality programme that writer's off — point taken (2,3,5,5)
I believe the answer is:
of the first water
Here is my best explanation:
'top-quality' is the definition.
'programme that writer's off point taken' is the subsidiary indication.
'programme' is an anagram indicator.
'point' becomes 'e' (E is an example).
'taken' indicates putting letters inside.
'thatwritersoff' anagrammed gives 'ofthfirstwater'.
'ofthfirstwater' placed around 'e' is 'ofthefirstwater'.
(Another definition for of the first water that I've seen is "most brilliant".)