Many thanks, Roger. I still don't understand the SOB bit, I must be thick! So I suppose 24d is skye, if you remove e (for drug) you get sky, but where does the cooler come in? i really am dim tonight.
hammersgirl, I do agree with you, I don't think some of the clues were at all good. I don't know where the t in greek gift comes from either. Is SOB son of a bitch, to put it bluntly (and risking being banned I assume!). Also, in 19ac, well ha ha, but where in the clue is the definition?
greyfox, I too thought the answer was an anagram of unitary +connection, but then I realised that those words only contain 4 n's. and there are 5 n's in continuity announcers. I've written that in though.