Just to satisfy (4)
I believe the answer is:
meet
I believe this clue is a double definition.
'just' is the first definition.
(similar in meaning)
'satisfy' is the second definition.
(I know that satisfy can be written as meet)
'to' is the link.
(Other definitions for meet that I've seen before include "Join" , "Fitting to come together" , "club" , "Fitting - encounter" , "Attend" .)