Timbre enthralling traveller born to find instrument (8)
I believe the answer is:
trombone
'instrument' is the definition.
(type of musical instrument)
'timbre enthralling traveller born' is the wordplay.
'timbre' becomes 'tone' (synonyms).
'enthralling' means one lot of letters goes inside another.
'traveller' becomes 'rom' (individual belonging to the Romani people).
'born' becomes 'b' (common abbreviation).
'rom'+'b'='romb'
'tone' going around 'romb' is 'TROMBONE'.
'to find' is the link.
(Other definitions for trombone that I've seen before include "Brass musical instrument with slide" , "Brass instrument with sliding tubes" , "Bfrass wind instrument with slide" , "Musical instrument with long slide" , "play this" .)