By being sent back in, also cross blockhouse (6) - TOYBOX
I know how this is parsed, (BY (rev. inside TOO (also) and X (cross)) but I can't find any source that gives 'toybox' as a synonym for 'blockhouse' - can anyone shed any light on this?
I can only think that toddlers play with toy blocks- either cubes or Lego, which may -or may not! live in a toybox, but I don't think that can be it, not a very good def.