Pirate almost at sea, no longer anchored (5)
I believe the answer is:
atrip
'no longer anchored' is the definition.
The answer and definition are different parts of speech. However, past participle verbs and adjectives can occasionally mean the same thing.
'pirate almost at sea' is the wordplay.
'almost' means to remove the last letter (most of the word but not all of it).
'at sea' indicates an anagram.
'pirate' with its final letter removed is 'pirat'.
'pirat' is an anagram of 'ATRIP'.
Can you help me to learn more?
(Another definition for atrip that I've seen is " just out of bed".)