Cave dweller gets the first baguette (5)
I believe the answer is:
troll
'cave dweller' is the definition.
(I've seen this in another clue)
'the first baguette' is the wordplay.
'the' becomes 't' (the is pronounced as a 't' sound in some dialects).
'first baguette' becomes 'roll' (I can't justify this - if you can you should believe this answer much more).
't'+'roll'='TROLL'
'gets' is the link.
Can you help me to learn more?
(Other definitions for troll that I've seen before include "Provocative poster" , "Monster - fish" , "Possibly a monster" , "Internet provoker; ugly being" , "Draw baited line, to lure fish" .)