16a pace umpires in car s-p-r-i-i, is it supermini, i can see it's an anagram of umpires in, but i've never heard of a supermini car
37d after tea,expression of vexation --a-r--, is it chagrin
36a scholar is not really relevant to boy a-c-d-m--a-
It fits in your original question. You have changed the letters in your reply? I think academical too. scholar-academic, boy- al not relevant academical