Taser perhaps, a beauty (7)
I believe the answer is:
stunner
'a beauty' is the definition.
(synonyms)
'taser' is the wordplay.
I cannot really see how this works, but
'taser' could be 'stun' (I've seen this before) and 'stun' is located in the answer.
This may be the basis of the clue (or it may be nonsense).
'perhaps' acts as a link.
Can you help me to learn more?
(Other definitions for stunner that I've seen before include "Dish" , "Attractive person" , "Amazing turn of events (colloq.)" , "Peach" , "Very attractive girl" .)