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' says to take the final letters.
'tracks' becomes 'ruts' (rut can mean a track).
'say' becomes 'eg' (both can mean 'for example').
'turning back' says the letters should be written in reverse.
The final letter of 'these' is 'e'.
'e'+'ruts'+'eg'='erutseg'
'erutseg' in reverse letter order 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" .)