Loitering, tempting king inside (7)
I believe the answer is:
lurking
'loitering' is the definition.
('lurk' can be a synonym of 'loiter')
'tempting king inside' is the wordplay.
'tempting' becomes 'luring' ('lure' can be a synonym of 'tempt').
'king' becomes 'K' (chess abbreviation).
'inside' is an insertion indicator.
'luring' going around 'k' is 'LURKING'.
(Other definitions for lurking that I've seen before include "Lying hidden in ambush" , "In hiding for ambush" , "Lying in wait, to ambush say" , "Skulking" , "Waiting in ambush" .)