Spring is in the air

Across

Precious gem (4)
Container for serving food (4)
Songbird with a reddish breast (5)
10 Persistent in demanding something (9)
11 Provide food and drink for a number of people at a party (5)
12 The act of touching physically (7)
14 Large stinging paper wasps (7)
15 Curved structure (4)
16 Volcano that still erupts occasionally (6)
18 Viral illness (3)
21 Perceive by sight (3)
22 Spring flowers (6)
23 Variety of lettuce (4)
25 Periods of precipitation (7)
27 Road without exit (7)
28 Imaginings while asleep (5)
29 Sensible or useful (9)
31 System for detecting underwater objects (5)
32 Assist, usually in some wrongdoing (4)
33 Fleur-de-lis (4)

Down

Keeps the wearers dry (9)
Transports schoolchildren (3)
Exactly alike (9)
Emerge from the egg (5)
Type of flute (8)
Insects with brightly colored wings (11)
Wonka candy (5)
Golden statuette (5)
13 All-kids cable station (11)
17 To show that somebody played a part in a crime (9)
19 Protects from rain (9)
20 A long narrow flag or banner (8)
24 Leopards have these (5)
25 Soft drinks (5)
26 Reddish-brown pigment (5)
30 Automobile (3)