Working alone, like Captain Hook? (12)
I believe the answer is:
singlehanded
'working' is the definition.
The answer and definition are different parts of speech. However, adjectives and past participle verbs sometimes mean the same thing.
'alone like captain hook?' is the wordplay.
'alone' becomes 'single' (synonyms).
'like captain hook?' becomes 'handed' (I can't explain this - if you can you should give a lot more credence to this answer).
'single'+'handed'='SINGLEHANDED'
Can you help me to learn more?
(Another definition for singlehanded that I've seen is " alone".)