Jailor’s headgear has peak (6)
I believe the answer is:
captor
'jailor's' is the definition.
I can't judge whether this defines the answer.
'headgear has peak' is the wordplay.
'headgear' becomes 'cap' (cap is a kind of headgear).
'has' is a charade indicator (letters next to each other).
'peak' becomes 'tor' (I've seen this in another clue).
'cap'+'tor'='CAPTOR'
Can you help me to learn more?
(Other definitions for captor that I've seen before include "kidnapper, perhaps" , "Person who takes and holds" , "He catches someone" , "The one who holds the prisoner" , "Person who has taken another prisoner" .)