Character turning up with cops at the King's Head (5)

I believe the answer is:

spock

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'character turning' is the definition.
The definition suggests a singular noun which matches the answer.

'up with cops at the king's head' is the wordplay.
'up with' is a reversal indicator (move letters in down clue up).
'at' is a charade indicator (letters next to each other).
'head' says to take the initial letters.
The first letter of 'kings' is 'k'.
'cops' backwards is 'spoc'.
'spoc'+'k'='SPOCK'

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(Other definitions for spock that I've seen before include "Star Trek Vulcan" , "aka Leonard Nimoy" , "Star Trek character" , "In terms of childcare, a revolutionary" .)

I've seen this clue in the Evening Standard.

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