Last 4!
4d - be angry, having to swallow a certain pungent liquid (4, 3) B*N* O*L
46d - wretched fold are truning up fully clother? (7) T*E***S
52d - in ancient language play on words isn't comprehensible at first (5) P***C POWIC?
54a - most unusual being suppplied with both question and answer in exam (9)
QU****E*T
Thanks in advance