Answer and Explanation:
In summary, I can tell you that this paragraph wants you to present specific characteristics of this position, which in addition to just applying to it, presents an explanation of the responsibilities that those who occupy this position should take, that is, the paragraph is asking for for you to describe the job with explanatory features that only apply to it.
An example of this can be seen if you are explaining a hairdresser job with organizational relationships and special and idiosyncratic circumstances like: The job requires you to have a good knowledge of hair handling, including the ability to cut and color and even discolor. In addition, the execution of hairstyles is essential, since customers can order. Nevertheless, the professional must keep the devices used in chemically treated hair separate from the devices used in natural hair so that there is no contamination
To improve your understanding, you need to know that idiosyncratic circumstances are information that refers to the specific functioning of something or to someone's very personal characteristics.