"To tackle the subject" means to address or deal with a particular topic or problem. It implies taking action and making an effort to understand, solve, or discuss the issue at hand. Full definition
With over forty exercises, the book is very comprehensive in tackling the subject of abdominal training. (fitness-ebooks.com)
And she dives into the not - so - pleasant aspects of pregnancy and motherhood, tackling subjects like postpartum depression and morning sickness. (momtricks.com)
Understanding things based on their perspective will allow you to tackle the subject in a rational and calm manner. (internationaldatingsites.org)