Started lunch inside, served and skedaddled (4)
I believe the answer is:
'skedaddled' is the definition.
(I've seen this in another clue)
'started lunch inside served' is the wordplay.
'started' says to take the initial letters.
'inside' indicates putting letters inside.
'served' becomes 'fed' (I've seen this in another clue).
The first letter of 'lunch' is 'l'.
'l' going within 'fed' is 'FLED'.
'and' is the link.
(Other definitions for fled that I've seen before include "Left the field" , "Ran or hurried away" , "Ran off in a hurry" , "Having run or hurried away" , "Female showed the way and escaped" .)