Cryptic crossword

Across

3 Possibly out at church, we feel (5)

8 Of sound quality (5) 10 Engaged just one in a whole group (5)

11 It's in the business of transportation (3) 12 Ask earnestly for a quiet hint (5) 13 Mends an old pavement? (7) 15 Savings account formerly in the States, say (5)

18 Chest expander (3) 19 Nickname for a destructive fellow? (6) 21 Dance at an unvarying pace? (3-4) 22 Promise to start work on the highway (4) 23 Be wild about Vera? (4) 24 Showed ill-humour when broke (7) 26 Makes effortless progress and throws out nothing (6) 29 What the poilu has to put on his hair (3) 31 Wise to head north in a great lake? (5)

32 Familiar American bloodsucker (7) 34 To cook eats around the piano is too much! (5)

35 Still to get back from Euston (3) 36 Maybe it's buckled (5) 37 Speak in absolute terms (5) 38 Jumped when the plate broke (5)

Down

1 Inhuman boor, perhaps, yet titular head (5)

2 Break up a girl's group (7)

4 Do they fly in slow motion? (4)

5 Talk engagingly to a bowler in a knockout tournament? (4,2) 6 Bird watchers use them on certain days at the end of March (5) 7 Figures the Egyptian leader is under a strain (5)

9 The point of chewing a bun (3)

12 What we mean by boys (7)

14 Salient feature of pure fiction (3) 16 Nostradamus's expensive instrument (5)

17 Can this star sign be 'Islands'? (5)

19 Be said to be made to order (7) 20 Number of times to say thanks and goodbye? (5)

21 An ear for music? (5) 23 Comes round and gives in (7)

24 A singularly grassy plain? (6) 25 Possibly half baked line in education! (3) 27 Speak of one's love for speed? (5) 28 Fibrous stuff suitable for sails (5) 30 Parking regulator the police have hesitation in using? (5) 32 Shoots up in making an arrest (4)

33 A child to tease without rest (3)