1: Call unexpectedly, find Dad at home! (3,2)
4: A standoff for late teams in rivalry (9)
9: Penniless meal is fantastic (5)
10: Flat fish and fruit alone (5,4)
11: Challenged Ruby after district attorney (5)
12: Trying restful turns around ship (9)
14: Courses finish with Decline and Fall (5)
16: Cold medicine's secret ingredients (7)
18: Aerial hunters complain about hills (7)
19: Hot, like one expressing disapproval? (5)
20: Heater refueler brings in fire (3,6)
22: Strap, though short, has hanger's heart (5)
23: Church members loosely align headphones (9)
25: Bloomer made by member of string quartet (5)
27: Catches misusing teen slang (9)
28: Stir outspoken 3-down resident, usually (5)