Disengaged and cold Shakespearean king (5)
I believe the answer is:
clear
'disengaged' is the definition.
(thesaurus)
'cold shakespearean king' is the wordplay.
'cold' becomes 'c' (eg on taps).
'shakespearean king' becomes 'lear' (I've seen this before).
'c'+'lear'='CLEAR'
'and' acts as a link.
(Other definitions for clear that I've seen before include "Jump over without contact" , "beyond doubt" , "Obvious; jump over" , "Open; not cloudy" , "Get net" .)