The chat somehow involving axe (7)
I believe the answer is:
hatchet
'axe' is the definition.
(hatchet is a kind of axe)
'the chat somehow' is the wordplay.
'somehow' indicates anagramming the letters.
'the'+'chat'='thechat'
'thechat' is an anagram of 'HATCHET'.
'involving' acts as a link.
(Other definitions for hatchet that I've seen before include "One makes short cuts" , "Hand-held chopping instrument" , "cutter" , "Short-handled axe" , "Light axe" .)