Across

9 English composer influenced by folk tunes and music of the Tudor period (1872-1958) (7,8)
10 Minute freshwater crustacean having a round body enclosed in a transparent shell (7)
12 A relaxed comfortable feeling (7)
13 A method of physical therapy that involves generating local heat in body tissues by high-frequency electromagnetic currents (9)
14 A sharp-pointed tip on a stem or leaf (5)
15 A cylindrical metal lining used to reduce friction (7)
18 Acts or serves as a liaison officer (7)
21 Marked by excessive enthusiasm for and intense devotion to a cause or idea (5)
23 Someone who presides over a forum or debate (9)
25 Give to in marriage (7)
26 The hot period between early July and early September (7)
29 An RN (10,5)

Down

1 Marked by active interest and enthusiasm (4)
2 Small elevation on the grinding surface of a tooth (4)
3 Take (someone) against his will for compulsory service, especially on board a ship (8)
4 Showing favoritism (6)
5 What Clytemnestra was (8)
6 We're on one (6)
7 TV show: Absolutely ________ (8)
8 Minimal clothing worn by stripteasers (1-7)
11 A farewell remark (5)
15 Avitaminosis caused by lack of thiamine (vitamin B1) (8)
16 A deliberate act of destruction or disruption in which equipment is damaged(8)
17 Worked as a detective (8)
19 Having or showing feelings of unwarranted importance out of overbearing pride (8)
20 Song: _____ and Ivory (5)
22 A light fitful sleep (6)
24 Walk unsteadily (6)
27 Open to or abounding in fresh air (4)
28 Any maneuver made as part of progress toward a goal (4)