Hi Ludo, no problem. I'm stuck on the other ones I'm afraid. The closest I can get for the 'Exposition once close.....' is:-
Once close to = Near, with the N(ame) dropping from 1st letter to 2nd giving ENAR + RATION (Allowance).
On the plus side ENARRATION is a word that shares some definitions with Exposition but I really am not confident it's correct. What letters do you have, if any?