Printing unit to ply ego, sadly (8)
I believe the answer is:
logotype
'printing unit' is the definition.
Although both the answer and definition are singular nouns, I don't understand how they can define each other.
'to ply ego sadly' is the wordplay.
'sadly' is an anagram indicator.
'to'+'ply'+'ego'='toplyego'
'toplyego' anagrammed gives 'LOGOTYPE'.
Can you help me to learn more?
(Other definitions for logotype that I've seen before include "Printing block" , "time-saving device at printer's" , "Identifying symbol" .)