West European student’s travel cost benefit (7)
I believe the answer is:
welfare
'benefit' is the definition.
(types of social security)
'west european student's travel cost' is the wordplay.
'west' becomes 'W' (synonyms).
'european student's travel' becomes 'el' (I can't justify this - if you can you should give a lot more credence to this answer).
'cost' becomes 'fare' (fare is a kind of cost).
'w'+'el'+'fare'='WELFARE'
Can you help me to learn more?
(Other definitions for welfare that I've seen before include "Health, prosperity, etc" , "Well-being" , "Financial support for those in need" , "Your well being, or help from the state" , "Health and fortunes of a person or group" .)