Unlike ministers, prepare (3)
I believe the answer is:
lay
'prepare' is the definition.
(I know that lay is a kind of prepare)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for lay that I've seen before include "Put down; lyric" , "bed" , "Place (bet)" , "gamble" , "Not professional" .)