It's peculiar to swallow one crust of loaf and choke (8)
I believe the answer is:
strangle
'choke' is the definition.
(I know that choke can be written as strangle)
'it's peculiar to swallow one crust of loaf' is the wordplay.
'it's peculiar' becomes 'strange' (similar in meaning).
'to swallow' indicates putting letters inside.
'one crust of loaf' becomes 'l' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'strange' placed around 'l' is 'STRANGLE'.
'and' is the link.
Can you help me to learn more?
(Other definitions for strangle that I've seen before include "throttle or choke" , "Tanglers who suffocate" , "Smother" , "cut off supply of air" , "Asphyxiate, throttle" .)