What the minister of finance made up for? Change of position that's initially timely! (6)
I believe the answer is:
budget
'what the minister of finance made up for?' is the definition.
'change of position that's initially timely' is the wordplay.
'change of position' becomes 'budge'.
'that's initially' suggests taking the first letters.
The first letter of 'timely' is 't'.
'budge'+'t'='BUDGET'
(Other definitions for budget that I've seen before include "Sum allocated for purpose" , "cost estimate" , "Funding plan" , "Plan of income and expenditure" , "Money allocated for a purpose" .)