Confused, having left port behind? (2,3)
I believe the answer is:
at sea
This clue might be a double definition.
'confused' is the first definition.
(synonyms)
'left port behind?' is the second definition.
Both the answer and definition are adjectives. Maybe there's an association between them I don't understand?
'having' is the link.
Can you help me to learn more?
(Other definitions for at sea that I've seen before include "Disorganised; bewildered" , "Lost or confused - on the briny?" , "Not knowing whether you're coming or going" , "Perplexed" , "stumped" .)