Fake queen posed with Zulu (6)
I believe the answer is:
ersatz
'fake' is the definition.
(I've seen this before)
'queen posed with zulu' is the wordplay.
'queen' becomes 'er' (abbreviation for Elizabeth Regina).
'posed' becomes 'sat' ('sit' can be a synonym of 'pose').
'with' is a charade indicator (letters next to each other).
'zulu' becomes 'z' (phonetic alphabet: alpha, bravo, charlie etc.).
'er'+'sat'+'z'='ERSATZ'
(Other definitions for ersatz that I've seen before include "Cheap substitute or imitation" , "Made in imitation, from German" , "Imitation (from Ger.)" , "unnatural" , "Phoney as in Germany" .)