Sam's out to get her — she's a beauty (7)
I believe the answer is:
smasher
'beauty' is the definition.
(I know that beauty can be written as smasher)
'sam's out to get her' is the wordplay.
'out' indicates an anagram (out can mean wrong or inaccurate).
'to get' means one lot of letters go next to another.
'her' becomes 'sher' ().
'sam' with letters rearranged gives 'sma'.
'sma'+'sher'='SMASHER'
'she's a' is the link.
I am not very happy about this link. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for smasher that I've seen before include "one breaks into pieces" , "who is attractive to men?" , "Effective tennis player" , "dish" , "Beauty" .)