Touch screens regularly finding applications (4)
I believe the answer is:
uses
'applications' is the definition.
(I've seen this in another clue)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for uses that I've seen before include "deployments" , "Functions, applications" , "Puts into service" , "manipulates" , "'Purposes, functions (4)'" .)