9: Responded, on 'Jeopardy!'
11: Where the heart is, proverbially
12: Where cookies might crumble
31: Cause of a bad air day
34: Bird with an eerie call
35: Extinct flightless bird
41: Tenth wedding anniversary gift
49: Frugal shopper's item
54: Spanish 'n' topper, sometimes
55: What the scared squid did
56: Do some laps at the Y