Vow the Parisian frames is love (7)
I believe the answer is:
idolise
'love' is the definition.
('love'->'idolize' is in my internal thesaurus and 'ize'->'ise')
'vow the parisian frames is' is the wordplay.
'vow' becomes 'ido' (I do, marriage vow).
'the parisian' becomes 'le' (definite article in French).
'frames' means one lot of letters goes inside another.
'le' enclosing 'is' is 'lise'.
'ido'+'lise'='IDOLISE'
(Other definitions for idolise that I've seen before include "Revere (someone) greatly or excessively" , "Make into a figure of worship" , "Doilies to worship" , "Worship and adore" , "Worship (S, not Z)" .)