Suggested by 41, the other unclued lights were worms entered backwards in the grid. To comply with the preamble, 6 down needs to be CESTODE (the individual worm) rather than CESTODA (the subclass).
First prize Leslie Verth, Newton Mearns, Glasgow
Runners-up Roslyn Shapland, Ilkeston, Derbyshire. Oenone Green, Feltham, Middlesex

Disagree with half of it, enjoy reading all of it
TRY 3 MONTHS FOR $5
Our magazine articles are for subscribers only. Start your 3-month trial today for just $5 and subscribe to more than one view
Already a subscriber? Log in
Comments
Join the debate for just £1 a month
Be part of the conversation with other Spectator readers by getting your first three months for £3.
UNLOCK ACCESS Just £1 a monthAlready a subscriber? Log in