Cryptic crossword No 3,960

Across

1. Witness lob, not the first by tennis player? (8)
2. Shows journey and where to depart from (8)
3. High court making announcement (6)
4. From far away they look steep and close to collapse (10)
5. Praise from peer for speaker (4)
6. Earl enters pub behind canal location (5,3)
7. Is man biased against women cycling? (6)
8. Take advantage of Mummy Tours here? (6)
9. Starts to rule out a plan to drop ecstasy - 20 or 30 perhaps (4,4)
10. Delivered tatty book for wife (4)
11. God has a lot of criticism for prophet (6)
12. Half-forgotten king during olden times getting rat-catcher (6)
13. In case of vote, say, registers for Greens? (10)
14. Sport is not going to work with five missing (6)
15. Damn rocks blocking path - don't step on one! (4,4)
16. Bench not covered by shed and small fences (8)

Down

1. Couple's free time delayed (5)
2. In theory exam questions might be like this? (2,5)
3. Marine creature, mostly timid and soft (7)
4. Family member following old fellow in supporting king (4,2,3)
5. Keeps collecting silver pans (7)
6. Entertains with stories about German son drinking beer (7)
7. Word in opposition from compatriot of Caesar, J (7)
8. Slams politician cutting public transport (5)
9. Inspiring hoodlum to admit crime after gent gets fleeced (9)
10. Key left under fancy seats in back of house (9)
11. Wonder when vehicle is coming back - taking a long way around? (7)
12. With run out, guarantee result (5)
13. Adulterers leaving uniform off in these watchful times (3,6)
14. Teen nuisance embraces boredom (5)