With three I am drunk
With four I have less weight than my brothers
With five I can measure
With six I have an anagram related to goods
With all my seven I don't like metaphors
Inspired by @tyobrien's template
With three I am drunk
With four I have less weight than my brothers
With five I can measure
With six I have an anagram related to goods
With all my seven I don't like metaphors
Inspired by @tyobrien's template
You are...
literal!
lit = drunk
lite = less weight
liter = a measure
retail = related to goods (anagram of "litera")