Seize file with 'Government' on the front (5)
I believe the answer is:
grasp
'seize' is the definition.
(I've seen this before)
'file with government on the front' is the wordplay.
'file' becomes 'rasp' (rasp is a kind of file).
'with' is a charade indicator (letters next to each other).
'on the front' says to take the initial letters.
The first letter of 'government' is 'g'.
'rasp' after 'g' is 'GRASP'.
(Other definitions for grasp that I've seen before include "Catch on" , "Hold firmly; understand" , "Hold - understanding" , "Firmly grip" , "Lay hold of" .)