Old photograph showing president dead (5)
I believe the answer is:
plate
'old photograph' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'president dead' is the wordplay.
'president' becomes 'p' (common abbreviation eg in VP).
'dead' becomes 'late' ('late' can be similar in meaning to 'dead').
'p'+'late'='PLATE'
'showing' acts as a link.
Can you help me to learn more?
(Other definitions for plate that I've seen before include "Item of crockery" , "Coat with metal" , "impression" , "Shallow vessel" , "Flat dish for food" .)