Crossword Genius

Force on trial wrongfully, but this straightens things out (8)

Ross

I believe the answer is:

flatiron

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

'force' is the definition.
Although both the answer and definition are singular nouns, I cannot see how they can define each other.

'trial wrongfully but this straightens things out' is the wordplay.
I cannot quite see how this works, but
an anagram of 'trial' is 'latir' which is within the answer.
The remaining letters 'fon' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).

'on' is the link.

Can you help me to learn more?

(Other definitions for flatiron that I've seen before include "Old device for pressing clothes" , "Antique household implement" , "that's no longer a pressing requirement" , "Fire-heated smoother" , "Latin for (anag) - old domestic appliance" .)

I've seen this clue in The Guardian.
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