Where sailor eats dog's dinner? (4)
I believe the answer is:
mess
'dog's dinner?' is the definition.
(I've seen this before)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for mess that I've seen before include "difficulty" , "Canteen - muddle" , "Confused person" , "4 [DISORDER]" , "Mix-up" .)