Collossus No.145 Cryptic

17 Across. Mash from buffet, (5)
17 Down. Prays out loud for honour(6)
14 Down. Bird American sodier raised in open building, ?i?e??
25 Across. So missed questions about coroners inquiry, (7)
24 Down. Waterproof a brick using this material, ???r?c
48 Across. After six, Riga in horrible state, ???g???a
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