King raises problem with German leaders (7)

I believe the answer is:

kaisers

'german leaders' is the definition.
(I've seen this in another clue)

'king raises problem' is the wordplay.
'king' becomes 'k' (abbreviation for king in chess).
'problem' indicates anagramming the letters.
'raises' is an anagram of 'aisers'.
'k'+'aisers'='KAISERS'

'with' is the link.

(Another definition for kaisers that I've seen is " German emperors".)

I've seen this clue in The Independent.

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