An old sailor, strangely glib and hot-headed (5)
I believe the answer is:
bligh
'an old sailor' is the definition.
The definition suggests a singular noun which matches the answer.
'strangely glib and hot-headed' is the wordplay.
'strangely' indicates an anagram.
'and' is a charade indicator (letters next to each other).
'hot-headed' becomes 'h' (this might be a standard abbreviation I've not previously seen).
'glib' with letters rearranged gives 'blig'.
'blig'+'h'='BLIGH'
Can you help me to learn more?
(Other definitions for bligh that I've seen before include "old captain dismissed" , "CA [CHILDRENS ADVENTURE] captain" , "The mutinous Bounty's captain" , "HMS Bounty captain" , "Vice admiral" .)