How do I clear the "other" storage from my macbook pro?
I tried using disk utilities but it doesn't help.
MacBook Pro with Retina display, OS X El Capitan (10.11.6)
First understand what OTHER actually is:
https://support.apple.com/en-us/HT202867
You do not want to eliminate all of it since the OSX is one of the components of OTHER>
Download from the Internet OmniDiskSweeper and Grand Perspective (both free) and open them. They will show all of your files and the respective sizes. Transfer to an external HDD the files you do not want on your Mac or delete them.
Do not forget to empty trash. Only then is space allocated for additional data.
https://www.omnigroup.com/more
http://grandperspectiv.sourceforge.net/
Ciao.