Hobbles after bald-headed old diehards (6)
I believe the answer is:
blimps
'old diehards' is the definition.
The answer and definition can be both people as well as being plural nouns.
Maybe there's a link between them I don't understand?
'hobbles after bald-headed' is the wordplay.
'hobbles' becomes 'limps' ('limp' can be a synonym of 'hobble').
'after' is a charade indicator (letters next to each other).
'bald-headed' becomes 'b' (this might be a standard abbreviation which I don't know about).
'limps' put after 'b' is 'BLIMPS'.
Can you help me to learn more?
(Another definition for blimps that I've seen is " Small airships".)