Seem to have Sunday cerebral roadblock!
5a: "Bill despises faithful companion" (7)
I have A-hates Thought it was therefore Adhates(betraying poor classical scho;arship I suspect)
28d: "One attempting to store wood of inferior quality" (8)
I have t-a---e-
39d:"state head drinks up alcoholic beverage" (9)
answer already partly given as predicate.
56a:"Female is involved in endless correspondence" (7)
I have L-s-t--
last question; Full logic please for 48a:
"writers humble origins principally covered in a university examination" (9)
I have authorial - can't explain.
Thanks