New to me too. I'd been racking my brains over those. Thanks for the explanations.
Please can anyone explain these?
20d: Washed out: I considered ringing doctor (9)
I have I?R?G?T?D. Looks like IRRIGATED, but why?
33d: Image-building included in course taken by new European tycoon (12)
I have ?N?R?E?P?E?E?R. Looks like ENTREPRENEUR (=tycoon). How does the rest of it work?