A king, surrounded by several, is captured (5)
I believe the answer is:
taken
'is captured' is the definition.
(I've seen this in another clue)
'a king surrounded by several' is the wordplay.
'king' becomes 'K' (chess abbreviation).
'surrounded by' is an insertion indicator.
'several' becomes 'ten' (I've seen this in other clues).
'a'+'k'='ak'
'ak' going within 'ten' is 'TAKEN'.
(Other definitions for taken that I've seen before include "Removed, accepted" , "Kidnapped" , "Obtained" , "Appropriated" , "Captured" .)