Fancy date outside with king (6)
I believe the answer is:
desire
'fancy' is the definition.
(I've seen this in another clue)
'date outside with king' is the wordplay.
'outside' suggests removing the centre.
'with' says to put letters next to each other.
'king' becomes 'sire' (I've seen this in another clue).
'date' with its middle removed is 'de'.
'de'+'sire'='DESIRE'
(Other definitions for desire that I've seen before include "Covet" , "Famous play: ''A Streetcar Named ......''" , "Strong need" , "Want strongly" , "Reside (anag.)" .)