In this context:
trying to become a staple amongst the community
In this context:
trying to become a staple amongst the community
Something that has become both common and expected in the same sense that bread and milk are staple foods:
It's not a very good word choice. "Staple" is most commonly associated with basic foodstuffs. Flour, oil, and eggs are all "staples".
The meaning of the word has stretched somewhat, so anything that is considered to be necessary, central, or key can be described as a staple, but the food connotation usually restricts the usage.
It is hard to tell without context, but I think maybe there is some confusion here between the concepts of "staple" foods, as outlined by Satanicpuppy and Kelly C Hess, and the phrase pillar of the community
, which means a prominent and respected member of the community.
This is metaphorical.
Being a "staple amongst the community" is a valuable attribute. This person is a pillar in the community. Some would also refer to the person as a rock. I just call them leaders, haha.
The word "amongst" is heard in British, Canadian, or Australian English. It is rarely heard in American English.
A "staple in your life" is a person, place, or thing holding your life together. Usually this is used when referring to person who is or has been a powerful influence in your life. My mother is a staple in my life. I can always count on her being there for me and holding things together.