Lisa managed to travel by sea (4)
I believe the answer is:
sail
'travel by sea' is the definition.
'sail' can be an answer for 'travel' (sailing is a kind of travelling). I'm not sure about the 'by sea' bit.
'lisa managed' is the wordplay.
'managed' indicates an anagram.
'lisa' with letters rearranged gives 'SAIL'.
'to' is the link.
Can you help me to learn more?
(Other definitions for sail that I've seen before include "Canvas sheet" , "Spanker, say" , "Travel by ship" , "Leave shore" , "Travel by boat" .)