Easter Monday
What a stinker this was! We finished it, but need help with some of the parsings please.
33a: Meet to gradually increase backing for broadcast (10)
FOREGATHER?
23d: Official line in electronic parts plant (8)
REFINERY?
31d: Spotted male animal that's valued in the States (7)
I have SAWBUCK. I can see how the answer is constructed, but where is the definition? Am I missing something obvious?
38d: Upset shaved cat entered, hopefully empty, folk's study (10)
DEMOGRAPHY?
All explanations gratefully received!