Stuttering woe, possibly? (6-7)

I believe the answer is:

tongue twister

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'stuttering woe possibly?' is the definition.
I can't judge whether this defines the answer.

'stuttering woe possibly?' is the wordplay.
'possibly?' indicates an anagram (I've seen 'possibly' mean this).
'stuttering'+'woe'='stutteringwoe'
'stutteringwoe' anagrammed gives 'TONGUE-TWISTER'.

Can you help me to learn more?

(Other definitions for tongue twister that I've seen before include "What's difficult to say" , "Phrase that is difficult to say properly" , "'I wish to wash my Irish wristwatch', perhaps" , "Eg, the sixth sheik's sixth sheep's sick" , "Difficult saying?" .)

I've seen this clue in The Telegraph.

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