Meet is outside of Filey on Saturday (7)
I believe the answer is:
satisfy
'meet' is the definition.
(satisfying is a kind of meeting)
'is outside of filey on saturday' is the wordplay.
'outside of' means to remove the middle letters.
'on' means one lot of letters go next to another.
'saturday' becomes 'sat' ('Sat' can be a synonym of 'saturday').
'filey' with its centre removed is 'fy'.
'is'+'fy'='isfy'
'isfy' after 'sat' is 'SATISFY'.
(Other definitions for satisfy that I've seen before include "Meet (a requirement)" , "Content" , "Be good enough for" , "Provide enough" , "Fully meet (conditions)" .)