Dawn escape in which one runs beside street (5,5)
I believe the answer is:
first light
'dawn' is the definition.
(synonyms)
'escape in which one runs beside street' is the wordplay.
I cannot really understand how this works, but
'one' could be 'i' (Roman numeral) and 'i' is found in the answer.
'runs' could be 'r' (cricket abbreviation) and 'r' is found in the answer.
'street' could be 'st' (abbreviation) and 'st' is found in the answer.
'escape' could be 'flight' (synonyms) and 'flight' is found in the remaining letters.
This accounts for all the letters.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for first light that I've seen before include "start of day" , "Instructions for enjoying cigarette" , "time for dawn chorus" , "early in the day" , "Glimmering" .)