Featured crossword No 22

Across

1. Laughable conclusion to educational health claim that's going around? (4,2,3,4,1,6)
2. Actor and translator, each second-rate, rejected (6)
3. Stupid association cut short Seles playing (8)
4. Does travelling westwards appeal, to make further changes? (2-4)
5. Paper's French article by avant-garde theatre director (10)
6. Flag and sail hung up (8)
7. Country song withdrawn about American south (6)
8. Woman mostly eating duck or albatross? (4)
9. Question in investigation encompassing Luxembourg millions (7)
10. Greatly admire union commitment, lecturer is principally exonerated (7)
11. See 20a
12. Precedent set out (twice) covering California (4,4)
13. Boat Institute (6)
14. Thus, an honour to welcome queen? Ultimately rather old hat (8)

Down

1. Melting icecap that could make people sick (6)
2. King & I book half-finished, such vacuous rubbish (6)
3. Harry eats bran, a poisonous plant (8)
4. Portuguese women in elite force surrounding Rhone complex (8)
5. Bob Ferguson possibly turning up to make trouble (6)
6. Flies briefly to places supported by El Salvador (7)
7. Setter gets up on day showing colours like the rainbow (6)
8. Contribution from someone on a talkshow about babies (8)
9. Essentially cooler breakdancing subgenre in 80s? (3,3)
10. Blessed perhaps, having got rid of a swelling 10 (5,3)
11. Division of Sky broadcasts Speed (8)
12. See 20a
13. Two-hander from the Parisian maestro will go touring, you decide finally (8)
14. Circle of petals in my jar (7)