2688: 4 ÷ 4 = 8
The unclued four-letter solutions can be paired in a particular way to form the four remaining eight-letter unclued lights. Across 1 Burns searches thoroughly around Union Street (8) 5 Developed green, variable power (6) 10 Labour man’s entertaining turn (5,5) 12 Irish backing chorister on Venetian bridge (6) 13 New tune outside? (5,3) 16 Account
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