Sunday times 4483

[poodie]

23 across. Can someone please explain why the answer seems to be baritone. 24 down. This has me stumped too. many thanks

[surepseh]

looks like you remove the first three letters of celebration and then rearrange the remaining

[WyeDyed]

Not everyone has the paper to hand Poodie, so here are the clues:
23a Voice coming from rowdy celebration after opening trio dropped (8)
24d One can hold wine at university? Not entirely (3)

[poodie]

Thanks for that. I suddenly remembered the rules after i pressed the submit button. Then felt like a complete idiot.