For Safari on desktop:
Open Safari
In the menu bar (top left of your screen) click Safari.
Then select "Clear History".
You may choose the timeframe in which you wish for this to be cleared for.
For Safari on Mobile:
This article details how to remove cache/cookies for mobile/desktop on Safari.
Open Safari
In the menu bar (top left of your screen) click Safari.
Then select "Clear History".
You may choose the timeframe in which you wish for this to be cleared for.