The most common and most likely answer to this crossword clue is the 6 letter word TAMEST
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More clues leading to the result TAMEST
- Rug from East Estonia is most dull
- . Least scary exam takes a minute
- During audition, amateur is most uninteresting
- Pre-lunch period in international, extremely dull
- 22 Openers for Australia, maybe, in cricket match providing fewest thrills
- Most tedious exam takes a minute
- Most docile Tamil leader's steam dissipates
- Most subdued radio band in experiment
Buddy explains!

The straight part
We know that "extremely dull" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case extremely dull = tamest.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 TAMEST mean?
TAMEST adjective- Not or no longer wild; domesticated
- (chiefly of animals) Mild and well-behaved; accustomed to human contact
- Not exciting.
- Crushed; subdued; depressed; spiritless.
- (of a knot) Capable of being represented as a finite closed polygonal chain.