The most common and most likely answer to this crossword clue is the 14 letter word TONGUE-TWISTER
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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 "What Peter Piper did, for example, is hard to say" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case what peter piper did, for example, is hard to say = 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.