Entered this under an earlier thread instead of a new one.
Almost finished this but just missing 5A: "Greenish pie, perhaps, dumped" -e-y-l-. Think this is the "and" to the clue's (undefined) solution. Grateful for hints.
Got recycle and the pie = chart connection, just pit that together with the "chartreuse", probably because I didn't think the "reuse and recycle" combo was particularly strong...ooops, showing my lack of green credentials