Indicate end of these tracks, say, turning back (7)
I believe the answer is:
gesture
'indicate' is the definition.
(thesaurus)
'end of these tracks say turning back' is the wordplay.
'end of' indicates one should take the final letters.
'tracks' becomes 'ruts' (rut can mean a track).
'say' becomes 'eg' (both can mean 'for example').
'turning back' shows that the letters should be reversed in order.
The last letter of 'these' is 'e'.
'e'+'ruts'+'eg'='erutseg'
'erutseg' backwards is 'GESTURE'.
(Other definitions for gesture that I've seen before include "Eg, shrug or wave" , "Meaningful hand or head movement" , "Action done for show" , "Expressive physical movement" , "Motion of the hands or body" .)