The French certain to embrace current convenient opportunity (7)
I believe the answer is:
leisure
'convenient opportunity' is the definition.
(I've seen this before)
'the french certain to embrace current' is the wordplay.
'the french' becomes 'le' ('the' in French).
'certain' becomes 'sure' (synonyms).
'to embrace' indicates putting letters inside.
'current' becomes 'I' (physics symbol).
'le'+'sure'='lesure'
'lesure' placed around 'i' is 'LEISURE'.
(Other definitions for leisure that I've seen before include "Time available for ease and relaxation" , "Time to rest and enjoy" , "Use lire (anag)" , "Time for relaxation and pleasure" , "Free time; relaxation" .)