Thanks so much for the gender question. I'd never have thought of it since it's a bit of an English inflection, innit?
Still not sure about "out of uniform" ( mber).
Came to this puzzle late due to holidays and agree it was a bit of a stinker.
Like you I still don't get the MBER for out of uniform.
Also although Nomad is obviously itinerant don't get rest of clue.
16 āNā, some out of uniform inspiring Sussex resort with no hotel (8)
NOVEMBER (nato alphabet N)
Number (some) minus U (uniform)
+ (h]OVE ā Sussex resort minus h[hotel]