4 A Go on about head of root vegetable (6) ?????t
12 A Crude stuff written in biro? no really! (4,3)??????e
14 A Bar upturned in beer, like a ploughed field (6) ??a?l?
16 A Rodent with an ailment isolated initially (6)???u?i
13 D Vehicle, one for hire, to steer clear (7) ???l?c??