Pole, say, heading off, finds somewhere to go (3)
I believe the answer is:
lav
'somewhere to go' is the definition.
(short for lavatory)
'pole say heading off' is the wordplay.
'pole say' becomes 'Slav' (Poles are a Slavic people).
'heading off' means to remove the first letter.
'slav' with its first letter taken away is 'LAV'.
'finds' is the link.
(Other definitions for lav that I've seen before include "Private place in short" , "Loo" , "toilet" .)