Barcelona: King OK following surgery drama (4,4,2,5)

I believe the answer is:

look back in anger

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'barcelona king ok following surgery drama' is the definition.
I know nothing about this answer so I can't judge whether this works.

'barcelona king ok following surgery drama' is the wordplay.
'barcelona king ok' anagrams to 'LOOK BACK IN ANGER'.
Though, I am not sure how the anagram is indicated.

Can you help me to learn more?

(Other definitions for look back in anger that I've seen before include "drama!" , "Retrospective of passion" , "play" , "be ticked off in review?" , "one may retrospectively find outrageous?" .)

I've seen this clue in The Times.

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