After protest see bishop leaving service (5)
I believe the answer is:
demob
'service' is the definition.
Although both the answer and definition are verbs in their base form, I cannot see how they can define each other.
'after protest see bishop' is the wordplay.
'after' says to put letters next to each other.
'protest' becomes 'demo' (demonstration).
'see bishop' becomes 'B' (chess abbreviation).
'demo' next to 'b' is 'DEMOB'.
'leaving' is the link.
Can you help me to learn more?
(Other definitions for demob that I've seen before include "Take out of action" , "Take (troops) out of active service" , "Leave the military" , "Release from armed forces" , "put out of service" .)