This is Inquisitor, hankir - you're a day early for the other one.
13 is obscure, but it's a body part (and only 5 letters) def is first 3 words - anag InWaRdS + T(appe[t])... normally it's the '????? PIN', but it's still ok without the 2nd word.
38 'bale' would be 'mischief' [so it ounds like...].
3d anag BIBLE + 'originally set' = S[et] in(side) 's(n)og' = 'PET' - def 'most common' (in the societal way).
24d 'until' = TO (d)'riven by' = 'interrupted by' a 6 letter word for - '(d)one not long ago' the def is the Italian word for the period of Giotto's art.