Motorcade for Clay? Those trained to fight are expected to leave their stamp on it presumably! (6,6)
I believe the answer is:
parade ground
'those trained to fight are expected to leave their stamp on it presumably' is the definition.
I can't tell whether this defines the answer.
'motorcade for clay?' is the wordplay.
'motorcade for' becomes 'parade' (I can't explain this - if you can you should give a lot more credence to this answer).
'clay?' becomes 'ground' (clay is a kind of ground).
'parade'+'ground'='PARADE-GROUND'
Can you help me to learn more?
(Other definitions for parade ground that I've seen before include "square" , "Military area" , "Where troops muster" , "where there may be a muster" , "Place for drill" .)