Kept in satchel, daily (4)
I believe the answer is:
held
'kept' is the definition.
(holding is a kind of keeping)
'in satchel daily' is the wordplay.
'in' says the answer is hidden in the clue.
'HELD' is hidden in the letters of 'satchel daily'.
(Other definitions for held that I've seen before include "Detained" , "Defended successfully" , "Retained, kept" , "Grasped, carried" , "Clasped" .)