Fund-raising event, perhaps, with Tory leader in charge (4)
I believe the answer is:
fete
'fund-raising event' is the definition.
(I've seen this before)
'with tory leader in charge' is the wordplay.
'with' means one lot of letters goes inside another.
'leader' indicates taking the first letters.
'in charge' becomes 'fee' (fee is a kind of charge. I am not sure about the 'in' bit.).
The first letter of 'tory' is 't'.
't' going within 'fee' is 'FETE'.
'perhaps' acts as a link.
Can you help me to learn more?
(Other definitions for fete that I've seen before include "Outdoor charity event" , "Outdoor bazaar for charity" , "Event held to raise money" , "Sale of goods and refreshments to raise funds for charity" , "lavish entertainment" .)