Apologies, especially to Mark, if these have already been asked but I followed several threads and am still looking for my remaining three:
20d Clearing earth by one's allotment, 11 letters; have E?O?E?A?I?N
26a Sudden turns in river, 7 letters; haveE?P?N?E
32d Six entering a house where birds are, 8 letters; have A?I?R?E?
Many thanks and happy Christmas!