Which term describes an accompanying aspect that is not the main focus?

The term "concomitant" accurately describes an accompanying aspect that is not the main focus. In various contexts, this word is used to denote something that naturally accompanies or follows something else. For instance, in legal and reporting contexts, it might refer to additional information or circumstances that exist alongside the primary subject but are not the central point of discussion.

The other terms, while having their own definitions, do not fit this description. "Commitment" refers to a pledge or dedication towards something, "consummate" is associated with achieving perfection or completing something fully, and "connoisseur" indicates someone with expert knowledge or taste in a particular area. Each of these terms has its specific context, but none relate to the idea of an accompanying aspect that is secondary to the main focus, making "concomitant" the correct choice.