Good morning, a tricky Pabulum though I think I’ve got the name of the poet. I’m stuck on the following and would appreciate answers, thanks!
ACROSS:
7 Monkey making glaring mistake (6) : ?????D
17 Down payment for place in Provence (5) : ????N
45 Prodrug transformed old dad (5, hyphened) : ????E
DOWN:
5 Sorry graduates rue leaving Swiss town (6) : ??T???
21 Colourless stone plus rock in bunker (8, two words) :??????A?
24 Sound of Persian women snubbed and upset (4) : ?E??
45A- a "prodrug" is a precursor chemical which acts as a drug when taken in by the human body. The answer is a chemical used to treat Parkinson's disease and it's an anagram of a word in the clue together with a synonym for "dad".