If you have an Off Peak Return (SVR), yes you can - and considering MAN - EDB doesn't have Off Peak Day Returns, yes you will.
Your outward portion is valid for either 1 or 2 days (depending on the ticket - there are 2 SVRs available between MAN- EDB, one has an outward validity of 1 day, the other 2 days)
Your return portion is valid for up to a month and break of journey is permitted in both directions.
As long as you are continuing in the same direction depending on the portion, you can break your journey as many times as you want within the ticket validity and resume subject to the ticket [time] restrictions.
It is perfecly valid, for example, to break you journey by traveling on day 1 and resuming on day 30 for example, but expect a lot of questioning if you did!