Dash to break word? (6)
I believe the answer is:
hyphen
'dash' is the definition.
(synonyms)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for hyphen that I've seen before include "Dash joining words" , "Punctuation mark separating words" , "A horizontal word joiner" , "Stroke between syllables or words" , "Word-joining mark" .)