Fool in the morning makes tea (5)
I believe the answer is:
assam
'tea' is the definition.
(I've seen this before)
'fool in the morning' is the wordplay.
'fool' becomes 'ass' (both can mean a stupid person).
'in the morning' becomes 'am' (AM on a clock).
'ass'+'am'='ASSAM'
'makes' is the link.
(Other definitions for assam that I've seen before include "North-east Indian tea state" , "region out east" , "Leaves to get in hot water" , "An Indian part" , "Indian tea-growing area" .)