Dismissive remark about instigator of Tory strategy (4)
I believe the answer is:
path
'strategy' is the definition.
(thesaurus)
'dismissive remark about instigator of tory' is the wordplay.
'dismissive remark' becomes 'pah' (I can't justify this - if you can you should give a lot more credence to this answer).
'about' means one lot of letters goes inside another.
'instigator of' suggests taking the first letters (the letter which begins or 'instigates' the word).
The first letter of 'tory' is 't'.
'pah' enclosing 't' is 'PATH'.
Can you help me to learn more?
(Other definitions for path that I've seen before include "Course of action; track" , "Track, way for walkers" , "Way for pedestrians" , "trail" , "Established route" .)