Beat and possibly harm me (6)
I believe the answer is:
hammer
'beat' is the definition.
(hammering is a kind of beating)
'possibly harm me' is the wordplay.
'possibly' is an anagram indicator.
'harm'+'me'='harmme'
'harmme' anagrammed gives 'HAMMER'.
'and' acts as a link.
(Other definitions for hammer that I've seen before include "Pounding tool" , "thus deformed toe" , "it's to be launched in 8 [HIGHLAND GAMES]" , "A striking tool for blacksmith" , "Come under the . . . . . . - be for sale at auction" .)