Cryptic crossword clue
Vigorous mum who’s flush and likely to blow up? 5

The most common and most likely answer to this crossword clue is the 5 letter word YAPPY

Y
A
P
P
Y

Buddy explains!

The straight part
We know that "Vigorous mum who’s flush" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case vigorous mum who’s flush = yappy.
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 YAPPY mean?

YAPPY adjective
  1. Of a dog, yapping in an annoying manner.
  2. Very talkative; talking foolishly or at length.

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