Crossword No. 1937: Interpolation by Egma

Symmetry: 180 degree + mirror

Size: 144 cells

Theme:
Each light is the centre of three consecutive headwords in Chambers Mid-Century Dictionary; the other two are clued, one by definition and the other by subsidiary indication.

Prizewinners
F E V Swindell (Nottingham)
J E Brown (London)
J Oliver (Lewes)