Affected by charm in period before spring (10)

I believe the answer is:
spellbound
'affected by charm' is the definition.
The answer and definition can be both related to bodily activities as well as being past participle verbs.
Maybe there's an association between them I don't understand?
'period before spring' is the wordplay.
'period' becomes 'spell' (spell can mean a period of time).
'before' is a charade indicator (letters next to each other).
'spring' becomes 'bound' (both can mean to jump).
'spell'+'bound'='SPELLBOUND'
'in' acts as a link.
Can you help me to learn more?
(Other definitions for spellbound that I've seen before include "Held rapt" , "Captivated" , "Bewitched" , "Transfixed, mesmerised" , "enthralled" .)
