Declaring I'd removed ridiculously tactless remark (7)

I believe the answer is:

clanger

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'tactless remark' is the definition.
Although both the answer and definition are singular nouns, I can't see how one could define the other.

'declaring i'd removed ridiculously' is the wordplay.
'removed' is a deletion indicator.
'ridiculously' indicates an anagram.
'declaring' with 'id' removed is 'eclarng'.
'eclarng' with letters rearranged gives 'CLANGER'.

Can you help me to learn more?

(Other definitions for clanger that I've seen before include "Embarrassing mistake (colloq.)" , "boob" , "Stupid mistake" , "A slang blunder - drop it" , "Big blunder" .)

I've seen this clue in The Irish Times.

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