King's tucked into bread loaves or snacks (6,4)
I believe the answer is:
monkey nuts
'snacks' is the definition.
(nuts that may be eaten as a snack)
'king's tucked into bread loaves' is the wordplay.
'king' becomes 'k' (abbreviation for king in chess).
'tucked into' indicates putting letters inside.
'bread' becomes 'money' (I've seen this before).
'loaves' becomes 'nuts' (both slang terms for head).
'k' going into 'money' is 'monkey'.
'monkey'+'nuts'='MONKEY NUTS'
'or' acts as a link.
(Another definition for monkey nuts that I've seen is " goober peas".)