Smart means being intelligent(理解力强的、聪明的) and having the ability to apply knowledge to real situations.
Generally, a smart person is an person who has a lot of knowledge. The knowledge may come from education or experience.
The reason why Smartphone is called "smart" is because it provides right information when you need them.
Smart can also describe a person who looks clean and well dressed.
Smart也用来描述一个人穿着整齐、清爽、得体。
Examples:
Jim always gives team very smart answers.
Jim总是能给大家带来非常得体、合理的答案。
You look very smart today.
你今天的打扮非常得体，让人舒服。
Clever means the ability to take the knowledge and experience and use it meaningfully(有意义的) and effectively(有效率的).
A clever person is an person who may not have the required knowledge, but he/she learns things quickly and is able to quickly find solutions to particular problems. Clever implies high creativity and originality of a person.
Clever的人不一定拥有非常多的知识，但这人学习、理解能力非常强，能够快速有效的找到问题的解决思路。这通常隐含着此人与生俱来的创造力以及原创力。
For example, one leg of the table is borken and i found there is a broken broom(扫帚) nearby, so I fastened(固定) the broom handle(把手) into the table leg. In this case, I am clever to find a solution to my problem.
Examples:
Jacey is the only person who gave the solution to our problem in my class. She is very clever.
Jacey是我们班里唯一一个能回答那个问题的学生，她非常聪颖。
What a so clever idea!
好聪颖的主意!
My brother is very clever with his hands.
我哥哥手非常巧(比如会制作精美的手工艺品。暗含着手巧是有天赋的)
