Talk about one day inside as stretch! (6,3)
I believe the answer is:
spread out
'stretch' is the definition.
The definition and answer can be both to do with contact as well as being verbs in their base form.
Perhaps there's an association between them I don't understand?
'talk about one day inside' is the wordplay.
'talk' becomes 'spout' (spout can informally mean to talk about something).
'about one' becomes 'rea' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'day' becomes 'd' (abbreviation for day).
'inside' indicates putting letters inside.
'rea'+'d'='read'
'spout' going around 'read' is 'SPREAD-OUT'.
'as' acts as a link.
Can you help me to learn more?
(Other definitions for spread out that I've seen before include "Move so as to cover a wider area" , "move apart" .)