Attention-grabbing schemes produced by great funny mimics over weekend (8)

I believe the answer is:

gimmicks

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'attention-grabbing schemes produced' is the definition.
I can't judge whether this definition defines the answer.

'great funny mimics over weekend' is the wordplay.
'great' becomes 'G' (abbreviation in place names).
'funny' indicates an anagram.
'over' indicates putting letters inside.
'weekend' becomes 'k' (I've seen this in other clues).
'mimics' with letters rearranged gives 'immics'.
'immics' going around 'k' is 'immicks'.
'g'+'immicks'='GIMMICKS'

'by' acts as a link.

Can you help me to learn more?

(Other definitions for gimmicks that I've seen before include "Tricks and devices, often to attract publicity" , "Gadgets" , "Schemes to bring in business" .)

I've seen this clue in The Irish Times.

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