Fuddy-duddy is around, sadly (8)
I believe the answer is:
dinosaur
'fuddy-duddy' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how one could define the other.
'is around sadly' is the wordplay.
'sadly' is an anagram indicator.
'is'+'around'='isaround'
'isaround' is an anagram of 'DINOSAUR'.
Can you help me to learn more?
(Other definitions for dinosaur that I've seen before include "Enormous extinct reptile of ancient times" , "Old-fashioned type" , "Extinct beast" , "Huge prehistoric monster" , "Extinct reptile - very outdated thing" .)