Like a jumping bean (7)
I believe the answer is:
mexican
'jumping bean' is the definition.
(synonyms)
'like a' is the wordplay.
I cannot really see how this works, but
'a' could be 'an' and 'an' is found in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for mexican that I've seen before include "Latin" , "From Chihuahua, perhaps" , "A central American" , "From Guadalajara or Acapulco?" .)