sturgeon

A doctor who performs operations. 7 take away one letter.

To rush forward with force, like a wave. 5 take away two letters.

To spend money freely or extravagantly. 7 add two letters after the s.

To clean something out by getting rid of unwanted things. 5 take away two consonants.

A lady’s handbag. 5 change one letter.

Perfect. Free from anything impure. 4 take away one letter. 

To heal an illness. 4 change one letter. 

The center of an apple. 4 change one letter.

What burns things. 4 change the first two letters.

A type of evergreen tree. 3 take away one letter.

In good physical shape. 3 change one letter. 

An animal that swims. 4 take away the last letter, then add two.