1 Across: Find a new home for a pet (6)
1 Down: Sell again after having bought it (6)
2 Down: A suffix, the jumbled letters of "the" or "het" (3)
3 Down: A large bone in a human heel (8)
4 Down: Used to wash a floor (3)
5 Across: Not causing physical pain (8)
5 Down: Program in Ethics and Health (Harvard University) (1,1,1)
6 Down: A suffix forming a noun from "chaste" (3)
7 Down: Using the left foot more naturally than the right (4-6)
8 Down: Former name for Tokyo, reversal of "ode" (3)
9 Down: Strokes (tennis) (5)
10 Across: A suffix, a rearrangement of the letters of "tee" (3)
11 Across: Efficient Deck Hand (merchant navy) (1,1,1)
12 Across: In a sheepish manner (10)
13 Down: Bella, a shortened form of ... (8)
14 Down: Put in a horizontal position (3)
15 Across: Pamper, wait on by hand and ... (4)
16 Across: In generous amounts (9)
17 Down: Having a tough hard texture like leather (7-4)
18 Across: Unidentified Flying Objects (1,1,1'1)
18 Down: Universal Data Format (1,1,1)
19 Across: Fuss (3)
19 Down: Charges for entry (10)
20 Down: Native of Australia (colloq.) (5)
21 Across: Eating implements (6,3,5)
22 Down: Informal name for Vietnam (3)
23 Down: A cigarette (informal) (3)
24 Across: ..., tammy, or tam-o'-shanter (3)
25 Down: Recommendations for a course of action (7)
26 Across: Her Majesty's Inspector (of Schools, UK) (1,1,1)
27 Across: Complete studies (8)
28 Down: Sow with seed again (6)
29 Down: Advertisements (3)
30 Across: Induce someone to have sex (6)
31 Down: Left over (6)
32 Across: Electron Drift Velocity (1,1,1)
33 Across: Indian reservation of United States Native Americans (US, informal) (3)
34 Across: Allocate or appoint (someone) to a job (6)
35 Down: A leader of an organization; "a ten" spelt backwards (Indian) (4)
36 Across: Treat badly (3-3)
37 Down: Swallows (4)
38 Across: Abbreviation of the Hebrew name Elisha (3)
39 Across: Smallest in number (6)
40 Across: Show contempt for, thumb one's ... (Informal) (4,2)
41 Across: Extents of surfaces (5)
Any changes will be lost.