Jane broke a horse in for a period after Elizabeth (8)
I believe the answer is:
jacobean
'a period after elizabeth' is the definition.
I can't tell whether this defines the answer.
'jane broke a horse in' is the wordplay.
'broke' indicates an anagram.
'horse' becomes 'cob' (type of horse).
'in' is an insertion indicator.
'a'+'cob'='acob'
'jane' with letters rearranged gives 'jean'.
'jean' placed around 'acob' is 'JACOBEAN'.
'for' is the link.
Can you help me to learn more?
(Other definitions for jacobean that I've seen before include "of Scottish king" , "Of period when James I reigned" , "From the time of James I" , "Early 17th-century" , "Relating to James I's era" .)