@poster.
So long as you intend to study your master in UK or US of A, I will advise you go for an E-passport indicating your other names since your Educational credentials have this name of yours. Because there could be somebody else with dsame credentials bearing that same name of your without the middle name.
Its absence on your passport will raise alot of questions by the ECO. DNT even consider applying like that, its very gross.hello,you not including your initials doesn't make the passport to be useless.u can go ahead with watever you want to use it for. Along the way u might encounter some problems like the names not corresponding with your certificates
The passport can still be used for anyother purpose (VISIT), but for the purpose masters you will definately encounter some porblems & the ECO won't be patient enough to sort that out.
.but i believe there are ways you could go about it.you will sworn an afidavit to back your claims.
An affidavit is not enough because the ECO has seen alot of FAKES. with just #200 you will get one.

ALL THE BEST.