PITCHERWITS
1a. Garnets, mid-cutting, all think alike? (5,5)
15a. Yell away discordantly in narrow street (8)
1d. Gases obey laws, as opposed to flying? (4,2,3)
8d. Feeling — spectacularly? (9)
5a. Often liquorice, but could be anything (8)
18a. Squashed — hard! — on price, maybe? (6,4)
2d. … for words? — of negative profit? (2,1,4)
10d. Rye, dyed in a mixture, is tearless (3-4)