The phrase "to cover the essentials" means to address or take care of the most important and necessary things, without focusing on the extras or non-essential aspects. Full definition
This book covers the essentials of sound legal reasoning, and discusses how to develop effective arguments, whether spoken or written. (clio.com)
Emergency funds can help cover essential expenses if you lose your job, face a major illness, or run into other financial hurdles. (investornews.vanguard)
We have covered some essential tips of writing an effective resume. (bestresumewriting.com)