Why is a trump attorney called a fixer, and a clinton attorney is called a attorney?

Well, this is the case because one is comparing apples and oranges.

A fixer is a specific type of job (think Olivia Pope in the tv show Scandal) who is responsible for subtly negotiating problems.

A lawyer is a member of the bar of a State who represents a person on a legal matters.

So, while Michael Cohen is/was a barred member of the law community he was not acting as a lawyer for President Trump.

productive most commonly means: achieving or producing a significant amount or result.

explanation:

productive can also mean:

these depend on how the word productive is used. most likely productive will mean   achieving or producing a significant amount or result.

answer; group behavior;