Strand story leads to Reichenbach eventually (5)
I believe the answer is:
fibre
'strand' is the definition.
(thesaurus)
'story leads to reichenbach eventually' is the wordplay.
'story' becomes 'fib' (synonyms).
'leads to' indicates taking the first letters.
The first letters of 'reichenbach eventually' is 're'.
'fib'+'re'='FIBRE'
(Other definitions for fibre that I've seen before include "Coarse plant food, low in nutrients" , "Thread, strand" , "Thread - strength of character" , "Thread; stamina" , "(Material composed of) thread(s)" .)