Furrow Oscar found in wooded area (6)
I believe the answer is:
groove
'furrow' is the definition.
(synonyms)
'oscar found in wooded area' is the wordplay.
'oscar' becomes 'o' (phonetic alphabet: alpha, bravo, charlie etc.).
'found in' is an insertion indicator.
'wooded area' becomes 'grove'.
'o' going within 'grove' is 'GROOVE'.
(Other definitions for groove that I've seen before include "Way of living that has become a habit" , "What the hippies sought" , "Long narrow channel in surface of hard material" , "Spiral track followed by a gramophone needle" , "'Channel, furrow (6)'" .)