If I see the clinging and the stress going on at the five clinging aggregates can that propel me into stream entry?
Like say I see that clinging is going on at the five clinging aggregates and I see that it's causing stress can that take me to enlightenment or is another method needed like seeing the rise and fall of the aggregates, or practicing the silavant: http://www.accesstoinsight.org/tipitaka/sn/sn22/sn22.122.than.html sutta.
Is it just a good overall practice anyway?
Yes. Meditating on the five aggregates and seeing the three characteristics of impermanence, stress, and non-self, leads all the way to Arahatship. In the words of the Anattalakhana Sutta:
"What do you think, monks — Is form constant or inconstant?"
"Inconstant, lord."
"And is that which is inconstant easeful or stressful?"
"Stressful, lord."
"And is it fitting to regard what is inconstant, stressful, subject to change as: 'This is mine. This is my self. This is what I am'?"
"No, lord."
(Similarly with the other aggregates)
"Seeing thus, the well-instructed disciple of the noble ones grows disenchanted with form, disenchanted with feeling, disenchanted with perception, disenchanted with fabrications, disenchanted with consciousness. Disenchanted, he becomes dispassionate. Through dispassion, he is fully released. With full release, there is the knowledge, 'Fully released.' He discerns that 'Birth is ended, the holy life fulfilled, the task done. There is nothing further for this world.'" http://www.accesstoinsight.org/tipitaka/sn/sn22/sn22.059.than.html
You can get enlightened by getting rid of clinging and craving. I.e. when a contract or formation gives arise to a sensation be equanimous without reaction knowing its true nature.
