A quick survey taking in hot waste container (6)

I haven't cracked this one yet — but the brilliant team at Fifteensquared have:

A SCAN (quick survey) around or ‘taking in’ H (hot) – yes, this is the one that Bert solved and clashed with my parsing of 12ac. Both parsings for 12ac made sense, but Bert’s worked with the the ‘n’ here.