Resent, say, king caught in move (8)
I believe the answer is:
begrudge
'resent' is the definition.
(synonyms)
'say king caught in move' is the wordplay.
'say' becomes 'eg' (both can mean for example).
'king' becomes 'R' (abbreviation of Latin rex).
'caught in' indicates putting letters inside.
'move' becomes 'budge' (to budge is to move slightly).
'eg'+'r'='egr'
'egr' inserted inside 'budge' is 'BEGRUDGE'.
(Other definitions for begrudge that I've seen before include "Envy, have feeling of resentment" , "Show envy" , "Envy (someone) the enjoyment of" , "Envy the pleasure of" , "Envy, resent having to give" .)