Lag's time to reach out (7)
I believe the answer is:
stretch
This clue might be a double definition.
'lag's time' is the first definition.
'stretch' can be an answer for 'time' (I've seen this before). I'm not certain of the 'lag's' bit.
'reach out' is the second definition.
(thesaurus)
'to' acts as a link.
Can you help me to learn more?
(Other definitions for stretch that I've seen before include "Make longer/wider" , "Extend, elongate" , "Make (something) longer" , "having just woken up?" , "sort of limousine" .)