Facilities offered by politicians after volcanic outpouring? (10)

'facilities' is the definition.
('lavatory' can be a synonym of 'facility')

'politicians after volcanic outpouring?' is the wordplay.
'politicians' becomes 'tories' (I've seen this before).
'after' says to put letters next to each other.
'volcanic outpouring?' becomes 'lava' (I've seen this before).
'tories' after 'lava' is 'LAVATORIES'.

'offered by' is the link.