2419: Figures in place

The unclued lights (individually or one pair) are of a kind. But, before entry into the grid, all but one has to be adapted figuratively speaking, so that one or two characters appear in an unchecked square.
 

Across

 
4    Most Britons could become members of a band (11)

11    I’ll join regiment under canvas, on the move (7)

13    Was boisterous – I’ll return, danced around (9)

14    Animal, one with fur on (5)

16    Dirty article removed for relation (5)

19    Aim is to keep safe, that’s for certain (7)

21    In torpid lethargy (4)

23    Danced the night away in hell with secondary pupil (7)

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Martin Narey

How I was punished for breaking the conspiracy of silence on grooming gangs

24    Oddly, team lack cosmetic preparation (4)

31    Even parts of unsacred aromatic plant … (4)

32    … damage side petal of African rue (7)

34    Region of the Near East (4)

35    Talk about watching, ignoring the time (7, hyphened)

37    The Scots 5 at quick departure, we’re told (5)

41    Hear tune varied round end of dreary Weber opera (9)

42    Hostel superintendent’s WW2 hide-away (6)

43    Spoil half the county’s borders (7)

44    Bits such as 5, 7 and 9 along with omega and zed (11, three words)