Pile on the Thames in use, a few others scattered to the north (8,5)
I believe the answer is:
somerset house
'pile on the thames' is the definition.
I don't know anything about this answer so I can't tell whether it can be defined by this definition.
'use a few others scattered to the north' is the wordplay.
'a few' becomes 'some' (both can mean a small amount of something).
'scattered' indicates an anagram.
'to the north' is a charade indicator (letters next to each other) (some letters go above or north of others).
'others' anagrammed gives 'rsetho'.
'some'+'rsetho'='somersetho'
'use' after 'somersetho' is 'SOMERSET HOUSE'.
'in' is the link.
Can you help me to learn more?
(Other definitions for somerset house that I've seen before include "Neoclassical building on the Thames by Waterloo Bridge - shooter sues me (anag)" , "Wills place once" , "Former London site of the General Register Office" , "Wells place?" , "London art gallery" .)