51d "Dark beer, half affected by plant fungus" (4)
?I?D can only see MILD for dark beer and mildew as the plant fungus but the half bit doesn't seem to quite work
39a "Lawyers not stumped by obstacle" (7)
B?R?i?R looks like it must be BARRIER with BAR giving the lawyers, but don't see the not stumped bit
Any help much appreciated