Bound to serve half of your King Edward (5)

I believe the answer is:

yoked

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'bound' is the definition.
(thesaurus)

'half of your king edward' is the wordplay.
'half of' suggests halving the letters.
'king' becomes 'K' (abbreviation for king in chess).
'edward' becomes 'Ed' (short for Edward).
'your' cut in half is 'yo'.
'yo'+'k'+'ed'='YOKED'

'to serve' acts as a link.
This may not be right. Some or all of it may belong to another bit of the clue.

Can you help me to learn more?

(Other definitions for yoked that I've seen before include "Joined together" , "with a burden to bear?" .)

I've seen this clue in The Independent.

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