Four to finish.
7dn. Scholars an old woman 's shown round part of City.(8) G?E?I?N?
8dn. Irish girl entering soon after midnight in New Hampshire(5) N?A?H
18dn. Like Dutch fellow climbing, showing obsessional enthusiasm(8) ?E?M?N?C
42dn. British politician's fashion enthralling old London area.(8)?R?M?T?N