The most common and most likely answer to this crossword clue is the 14 letter word TONGUE-TWISTER
I've seen this crossword clue in Financial Times
T
O
N
G
U
E
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T
W
I
S
T
E
R
More clues leading to the result TONGUE-TWISTER
- One winding up an organ? It's hard to say
- What Peter Piper did, for example, is hard to say
- Would it damage part of a shoe? It’s hard to say
- Stuttering woe corrected in diction exercise
- Hard thing to say to new visitor involving mixture of wit and hesitation
- Uttering it, ultimately we so will struggle?
- Stuttering woe produced by this?
- Nothing to hide in stuttering we suspect, as words hard to say
Buddy explains!
The straight part
We know that "Uttering it, ultimately we so will struggle?" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case uttering it, ultimately we so will struggle? = tongue-twister.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 TONGUE-TWISTER mean?
TONGUE-TWISTER noun- A phrase that is deliberately designed to be difficult to say correctly, usually because of varying combinations of similar phonemes.