List of instructions for school run pocketed (7)
I believe the answer is:
program
'list of instructions' is the definition.
(I've seen this before)
'for school run pocketed' is the wordplay.
'for' becomes 'pro' (I've seen this before).
'school' becomes 'gam' (I've seen this in other clues**).
'run' becomes 'r' (cricket abbreviation).
'pocketed' indicates putting letters inside.
'gam' placed around 'r' is 'gram'.
'pro'+'gram'='PROGRAM'
(Other definitions for program that I've seen before include "list of instructions" , "Code" , "Course" , "Piece of software" , "Set of computer instructions" .)