1: Down under - thoroughly (2,5)
2: Pound off top of door--what's inside? (5)
3: A favourite car of Seattle natives. (11)
4: Call initially communicates real yearning (3)
5: Like powerful uncle in Indian state? (5)
6: Greek characters suggest dawn (3)
7: A democratic leadership, time after time, is a benefit (9)
8: Spins grilles around axis (7)
12: Kent, in part, reportedly has wheels (5)
13: 27-across about starting off 1-down world unconditionally (2,3,2,4)
16: Eccentric team owner is behind the times (4-5)
17: In favour of an outer garment for protection (5)
18: Planned modus operandi led in both directions (7)
20: What's left of reckless desire to get closer to you (7)
23: Swamp creature resting tail on a rocky outcrop (5)
24: This identifies the literary epic at the outset! (5)
26: A representative may be a scamp (3)
27: Man, what an avant-garde US artist! (3)