Show ID (cryptically) (7)
I believe the answer is:
display
'show' is the definition.
(displaying is a kind of showing)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for display that I've seen before include "Exhibit, show" , "Show to the public" , "Showcase" , "Reveal" , "Show or arrange" .)