Crossword Genius

Musical dog joined ship (3,5)

Ross

I believe the answer is:

lil abner

I'm a little stuck... Click here to teach me more about this clue!

'musical' is the definition.
I know nothing about this answer so I cannot judge whether it can be defined by this definition.

'dog joined ship' is the wordplay.
I cannot quite understand how this works, but
'dog' could be 'lab' (short for labrador) and 'lab' is found in the answer.
'ship' could be 'liner' (liner is a kind of ship) and 'liner' is found within the remaining letters.
This accounts for all the letters.
This explanation may well be incorrect...

Can you help me to learn more?

I've seen this clue in the Sydney Morning Herald.
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