In this anniversary year, unclued lights (one of two words) are of a kind. Ignore four accents.

Across

1 Regularly curse wee coming back through opening in baby’s clothing (9)
6 Foreigner married in Kent (5)
11 Irritable, graze on a little yoghurt (8)
13 Problem walking beside British Colonel (5)
14 Land comedian at hospital with temperature (6)
15 Ruined at start of quiz, leading pair lost (6)
17 Among papers, one is not secure (4)
19 More weird mutant reindeer leaving North Dakota (6)
23 Staple books at work turned over (6)
24 With tool I damaged can opening fruit (9)
30 Working on poker, retired from racing?...