I’m stuck on a couple
27/a Relative American has porked a bit (6) c?u?i? - I presume the answer is Cousin but I can’t parse it
21/d Square having meat feast perhaps, anus originally gobbled (6)
I presume it’s Fiesta but again can’t parse it ( unless it’s an anagram of feast with I in it ?)
25/a where you’re filling in my anus, that is to say (3)
Any help gratefully received, Rob