Bluebottles and gnats

• Compost heap "residents"
• Dumpster habitués
• Goes American, perhaps
• What time does
• Fielder’s forte
• Swatters' victims
• What fielders shag
• Goes by dirigible
• Warm-weather pests

Wiktionary Word definitions in Wiktionary
n. 1 (fly English) 2 (context pluralonly English) The open area above a stage where scenery and equipment may be hung. 3 The trouser zip vb. (en-third-person singularfly)