1: State change in cross-location (7)
4: Betraying no emotion when Greek god has first expired (7)
8: God, transforming first day into last night, was received (3)
9: We hear you cannot pay, so you can't smell. (9)
10: Those who study bugs' motion got less confused (13)
13: and 2 Curses! Dons the parodists (4,3,7,2)
15: Boys terse brief for pearl producers (7)
17: Larvae can appear to contain cure-all (7)
18: Get used to being in Treasury Department with a secure job (7)
19: Stop fooling around with her at tea break (4,1,8)
22: Measuring unusual flowers (9)
24: Leaders of Orioles and Rangers stick in the dugout? (3)
25: Turning back, Sid went in to astonish naturalists (7)
26: I left terminus, breaking a bone (7)