Comes to the trails of ships (5)
I believe the answer is:
wakes
'comes to' is the definition.
(I've seen this in another clue)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for wakes that I've seen before include "Rouses from sleep" , "Comes to life" , "Has sleep disturbed" , "holiday up north" , "parties?" .)