Time sprint for dash (5)
I believe the answer is:
trace
'dash' is the definition.
(thesaurus)
'time sprint' is the wordplay.
'time' becomes 't'.
'sprint' becomes 'race' (I've seen this before).
't'+'race'='TRACE'
'for' acts as a link.
(Other definitions for trace that I've seen before include "Small quantity; find" , "Very small amount that can only just be detected" , "Detect - a small amount" , "Locate by investigation" , "description of some elements?" .)