President’s computer working to suppress resistance (6)
I believe the answer is:
macron
'president's' is the definition.
(French president Emmanuel Macron)
'computer working to suppress resistance' is the wordplay.
'computer' becomes 'Mac' (Apple Mac computer).
'working' becomes 'on' (e.g. a machine is working or on).
'to suppress' indicates putting letters inside (inserted letters are suppressed or crushed).
'resistance' becomes 'r' (abbreviation in physics and electronics).
'mac'+'on'='macon'
'macon' going around 'r' is 'MACRON'.
(Another definition for macron that I've seen is " French president".)