Back to 'normalcy' (although, when am I ever normal?).
1A Def Strange Wordplay OED (dictionary) E->D (English to Dutch)
4A Def grant Wordplay A + ward (hospital room)
6A Def Psychological Wordplay Hidden in paIN NERves
7A Def break up Wordplay Decry (condemn) change 'r' (redhead) to 'a'
8A Def Could be Erik Wordplay cREDo with outer letters removed
1D Def Possessor Wordplay Anagram (eccentric) of renown, but with an 'n' removed (it's old, or not New). This wordplay is questionable, hence the ?
2D Def Spin Wordplay reverse (up) all of EC (engineering corps) + N (new) + promotion (AD)
3D Def Awful Wordplay Double-definition with dreadlocks (which can be dreads, or less commonly dread)
4D Def Help Wordplay I (one) inside AD (Christian era)
5D Def Plain Wordplay Dowry, removing 'o' (love) and 'w' (whiskey)