One unclued light is an utterance prompted by a discovery. One unclued light is the occupation of the person to whom the discovered item belonged; the remaining unclued lights are features of the item. The name of the speaker, concealed in one column, and the item itself, concealed in another, must be highlighted. One unclued light consists of three words, and one consists of two words.
Across
8 Exultant cry by supplier of music for journey (4)
12 Not as worried about lawful petitioner (10)
13 Father left daughter in country (6, two words)
14 Declines to keep fish in boxes (7)
15 Goes without money in defeat, languishing (8)
18 Fibre damaged outer cell (9)
19 Mathematician changing rule, bold in ignoring diameter (9)
20 Blue colour’s ending in cheese (4)
21 Uranium stored by power plant (4)
24 Earth for instance in small pasture (6)
27 Scorch towards satellite (6)
29 Urn turned completely round (4)
30 Strike back in brutal style (4)
32 Ordered to reverse, exaggerate degree of turning (9)
34 Device for making videos about Monaco fraternity (9)
37 Fixed amount following overdue cut by despicable person (8, two words)
39 Lump, piece rejected and hit (6)
40 Credit received by terrible cheat, not expert in government (10)
41 Escape failure in the end (4)
42 Entry involving number of horns (8)
Down
1 Chapter about a bear climbing tree (8)
2 Slanting seal roughly securing work (6)
5 Glacial, I find fault in speech (7, hyphened)
6 More stellar bishop in rite as broadcast (8)
9 Father cheers up and leaves (4)
10 Vessel possessed by unknown lord rising in sinister way (6)
16 Plaster changes some houses (5)
17 Hurry, with sun disappearing, after quiet stop in Scotland (4)
22 Tangle with companion in game (5)
23 Old hake men judge, entering expression of disgust on note (8, hyphened)
25 Print over sign (4)
28 Orchestra in wonderful part of ship (7)
30 Troop train (6)
33 Guts put into acting (6)
35 Gold ring lacking good part (5)
36 Gives power to alien in Lesotho (4)
A first prize of £30 for the first correct solution opened on 9 July.

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