Ace PM, Liz Truss, fighting with EU member might be lifted by this? (9,6)

I believe the answer is:

trapezius muscle

'member might be lifted by this?' is the definition.
(muscle that might lift an arm)

'ace pm liz truss fighting with eu' is the wordplay.
'fighting with' indicates anagramming the letters (I've seen this in other clues).
'ace'+'pm'+'liz'+'truss'='acepmliztruss'
'acepmliztruss' with its letters mixed up with 'eu' can make 'TRAPEZIUS MUSCLE'.

I've seen this clue in The Guardian.

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