Ponder resistance and choose to embrace force (7)
I believe the answer is:
reflect
'ponder' is the definition.
('reflect' can be a synonym of 'ponder')
'resistance and choose to embrace force' is the wordplay.
'resistance' becomes 'r' (abbreviation).
'and' means one lot of letters go next to another.
'choose' becomes 'elect' (electing is a kind of choosing**).
'to embrace' indicates putting letters inside.
'force' becomes 'f' (symbol used in Physics e.g. f=ma).
'elect' enclosing 'f' is 'eflect'.
'r'+'eflect'='REFLECT'
(Other definitions for reflect that I've seen before include "Ponder; send back" , "Ponder - mirror" , "Meditate -- throw back" , "Act as a mirror" , "Meditate - mirror - show" .)