After prayer, golden couples bury small trinkets (10,5)
I believe the answer is:
collectors items
'trinkets' is the definition.
'after prayer golden couples' is the wordplay.
'after' means one lot of letters go next to another.
'prayer' becomes 'collect' (collect is a type of prayer).
'golden' becomes 'ors' (I am not sure about this - if you are sure you should believe this answer much more).
'couples' becomes 'items' (a couple might be called an 'item').
'collect'+'ors' is 'collectors'.
'collectors'+'items'='COLLECTORS ITEMS'
'bury small' is the link.
This may not be right. Some or all of it may be part of another bit of the clue.
(Another definition for collectors items that I've seen is " gems?".)