Red, are you confusing post-cycle recovery with gyno prevention?
No, Fina doesn't 'cause' gyno. However, if you take it long enough your testosterone levels will drop. This can create a high estrogen to testosterone ratio which can lead to gyno.
Also, when you read about people saying "fina gave me gyno" look at the rest of their cycle. You'll usually see two or three other steroids were also being used (and sometimes the unfortunate use of bromo).
Taking clomid after a cycle is to speed up the recovery of your HPTA so that your testosterone production can go back to normal.