Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_18 ( round__number INTEGER, pick__number VARCHAR, position VARCHAR, college VARCHAR )

### Question ###
What is the average round number with wide receiver as position and Clark University as the college and the pick number is bigger than 166?

### Accurate SQL ###

SELECT AVG(round__number) FROM table_name_18 WHERE position = "wide receiver" AND college = "clark university" AND pick__number > 166