1: Deepest swimming is totally immersed (7)
5: Bad example or examples (7)
9: Like a high ranking diplomat's awful ambrosia salad (13)
10: Partially remodel attic, extending framework (7)
11: Sheep to start wallowing in ease (3)
12: Reportedly is nostalgic for wife (3)
13: Backblock not all there (3)
14: Be prepared with amnesties for truancy (11)
18: 27-across about starting off 1-down world unconditionally (2,3,2,4)
19: Prohibit an attorney's organization (3)
20: Drongo lacks even a pet (3)
22: Worthless even when recycled (3)
24: Taking a turn with a maiden over jewellery (7)
25: Taking ones cue from subsequent courtship (9,4)
26: Warning: Reverend Spooner's run off with newspaper (3,4)
27: Batters consisting of partially digested food and semi-solids (7)