Crossword Genius

Search for dishes among iron plates joining rails (4-6)

Ross

I believe the answer is:

fish-plates

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

'among iron plates joining rails' is the definition.
I know nothing about this answer so I can't tell whether this works.

'search for dishes' is the wordplay.
I cannot quite see how this works, but
'search' could be 'fish' (fishing is a kind of searching) and 'fish' is located in the answer.
'dishes' could be 'plates' (plate is a kind of dish) and 'plates' is located in the answer.
This accounts for all the letters.
This explanation may well be incorrect...

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I've seen this clue in The Irish Times.
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