Silence from gym guru? (5)
I believe the answer is:
'silence' is the definition.
'gym guru?' is the wordplay.
'gym' becomes 'pe' (short for Physical Education).
'guru?' becomes 'ace' (I can't explain this - if you can you should believe this answer much more).
'from' is the link.
Can you help me to learn more?
(Other definitions for peace that I've seen before include "Absence of conflict", "'Calm, harmony (5)'", "[STILLNESS]", "State of freedom from war", "Calm, serenity".)