Cryptic crossword No 3,977

Across

1. Splashing mat with wetter power shower (9)
2. Captivated by weekend of Japanese sword fighting (5)
3. Left after two lessons in disgust (5)
4. Short afternoon break to drink cooking wine that’s extremely strong (9)
5. Hard case rapidly chasing vehicle (8)
6. Country from further afield returned donations (5)
7. Picture that is on front and back of magazine (5)
8. Discreetly picked up a weird egg that’s cracked (9)
9. Start to rummage through child’s drawer (9)
10. Return violin that might be played in the pub (5)
11. Cycling seat starts to rub awfully where the sun doesn’t shine (5)
12. Engineering graduate accepting one pound to make gear to go on a washer? (8)
13. Man in lodge demanding high ransom fee (9)
14. Parcel loader packing instrument (5)
15. Gentlemen check for lubricant (9)
16. Opposing radicals having the same depth in submarine detector (5)

Down

1. Room in hospital comes with drawback? (4)
2. Action Man catches virus? (7)
3. Dying wish to see male organ in tense Spielberg film (9)
4. Seedless fruit spread (5)
5. 1,000 serve in uniform, independent of the Arabic Gulf (7)
6. True Brits panic when naked before a romantic situation (9)
7. Italian general and soldier capturing a base (9)
8. Reject butter – margarine rules! (7)
9. Money perhaps skimmed by chief of bank (5)
10. One end of flapjack, perhaps, is what’s left on the table? (4)
11. Athlete runs after working out Wed, Fri and Sun (10)
12. Very much turned on by friend’s bottom half (2,3)
13. Gives order to roll credits (7)
14. Not in office, network over lunch perhaps, taking a break from convention (10)
15. Two things you might wear with diamonds, going out to see boss (3,6)
16. “Plain” from British Airways? That’s their spelling mistake, not mine! (5)