The most common and most likely answer to this crossword clue is the 8 letter word FLIPPING
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Buddy explains!
The straight part
We know that "Blooming/action required in tiddly-winks!" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case blooming/action required in tiddly-winks! = flipping.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does FLIPPING mean?
FLIPPING verb- To throw so as to turn over.
- To put into a quick revolving motion through a snap of the thumb and index finger.
- To win a state (or county) won by another party in the preceding elections
- To turn state's evidence; to agree to testify against one's co-conspirators in exchange for concessions from prosecutors.
- To induce someone to turn state's evidence; to get someone to agree to testify against their co-conspirators in exchange for concessions.
- To go berserk or crazy.
- To buy an asset (usually a house), improve it and sell it quickly for profit.
- To invert a bit (binary digit), changing it from 0 to 1 or from 1 to 0.
- The practice of buying real estate, making improvements to it, and reselling it for a higher price.
- A mild intensifier.
- Fucking; used as an intensifier to modify verbs, adjectives, and other adverbs