Consumption in America for example, goes up (5)
I believe the answer is:
usage
'consumption' is the definition.
(I've seen this before)
'america for example goes up' is the wordplay.
'america' becomes 'usa' (synonyms).
'for example' becomes 'e.g.' (synonyms).
'goes up' says the letters should be written in reverse.
'eg' back-to-front is 'ge'.
'usa'+'ge'='USAGE'
'in' acts as a link.
(Other definitions for usage that I've seen before include "Treatment; tradition" , "Employment - practice" , "Customary way in which language is spoken or written" , "linguistic custom?" , "Convention" .)