ACROSS
3Something a bird might use
6Flat below the White Cliffs
8Anagram of 'elk cream'
9Has 5 pairs of legs and big claws
10Game of hiding together
11Deep sea swimmer couldn't make a cake
12Popular, pink and sometimes smoked
DOWN
1A freshwater rainbow
2Sounds like the foot soldiers of chess
4Smoked in Kedgeree and Cullen Skink
5You might catch this in a monastery
7Roll mpo ....