Stick up banks in Lancashire, which is interesting (7)
I believe the answer is:
notable
'is interesting' is the definition.
'stick up banks in lancashire' is the wordplay.
'stick' becomes 'baton' (term for a stick or staff).
'up' says the letters should be written backwards (in down clue: letters go upwards).
'banks in' suggests removing the centre (the edges or banks of the word).
'lancashire' with its middle taken out is 'le'.
'baton' in reverse letter order is 'notab'.
'notab'+'le'='NOTABLE'
'which' acts as a link.
(Other definitions for notable that I've seen before include "Widely known and esteemed" , "Celebrated" , "Eminent" , "VIP" , "Unusual" .)