Since it's not possibile to explore from Spotlight iCloud Drive folder hence this workflow to help.

Open new Finder window of iCloud Drive or given application storage.

 

EXAMPLE: 'icloud', to open a new iCloud Drive window.

EXAMPLE 'icloud ithoughtx', to open a new Finder window in iCloud Drive space for iThoughtX application.

 

Currently supported commands: pages, numbers, keynote, ithoughtx, docs.

'docs' opens a folder in the iCloud Drive root named 'iCloud Docs'.