The man wearing fancy belt and digital shield (7)
I believe the answer is:
thimble
'digital shield' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps you can see a link between them that I can't see?
'the man wearing fancy belt' is the wordplay.
'the man' becomes 'him' ().
'wearing' means one lot of letters goes inside another.
'fancy' is an anagram indicator.
'belt' with letters rearranged gives 'tble'.
'him' inserted within 'tble' is 'THIMBLE'.
'and' is the link.
Can you help me to learn more?
(Other definitions for thimble that I've seen before include "sewer cover?" , "Finger-guard" , "See 5" , "Sewer's protection" , "Sewer's aid" .)