1: In all, just a little peak. (3)
2: Excitedly saw open arms (7)
3: Follow south for lecture (5)
4: Author of Breathe Out, Lay Out, Going Out? (4,5)
5: Call initially communicates real yearning (3)
8: Places and composition? (9)
9: Great clamour in part of building with many turns. (7)
10: Prig had ma conceal midriff (9)
13: A month's work for a denizen of the deep (7)
15: Crushed bones, say, as source of sauce (4,5)
20: Duck turning up initially looking like a Walt Disney animated goose (7)
22: Hand calculators, starting as backups, add critical information (5)
24: Mann's 'Death in Venice' Dorothy sent up (3)
26: Sound of river crossing (3)