Crossword Genius

Name for ship written about by Gilbert and Sullivan (3,8)

Ross

I believe the answer is:

hms pinafore

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'gilbert and sullivan' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.

'name for ship written about' is the wordplay.
'written about' is an anagram indicator (letters moved about before being rewritten).
'name'+'for'+'ship'='nameforship'
'nameforship' with letters rearranged gives 'HMS PINAFORE'.

'by' acts as a link.

Can you help me to learn more?

(Other definitions for hms pinafore that I've seen before include "Light work" , "ship?" , "G & S' alternative for 'The Lass That Loved a Sailor'" .)

I've seen this clue in The Irish Independent.
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