Beauty queen hasn't succeeded, cutting line in phrase badly (7)
I believe the answer is:
misword
'beauty queen' is the definition.
The definition suggests a verb in its base form which matches the answer.
'hasn't succeeded cutting line in phrase badly' is the wordplay.
I cannot quite understand how this works, but
'succeeded' could be 's' (genealogical abbreviation) and 's' is found within the answer.
'phrase' could be 'word' (synonyms) and 'word' is located in the answer.
The remaining letters 'mi' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
(Another definition for misword that I've seen is " Phrase wrongly".)