Forced to ease one's way into the outskirts of Wanstead! (6)
I believe the answer is:
wedged
'forced' is the definition.
('wedge' can be a synonym of 'force')
'way into the outskirts of wanstead' is the wordplay.
'way' becomes 'edge' (I can't explain this - if you can you should give a lot more credence to this answer).
'into' indicates putting letters inside.
'the outskirts of' suggests removing the centre (only letters on the outskirts).
'wanstead' with its middle removed is 'wd'.
'edge' put inside 'wd' is 'WEDGED'.
'to ease one's' acts as a link.
This may not be correct. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for wedged that I've seen before include "Stuffed in between other things" , "Packed tightly between other things" , "Stuck" , "Shoved tightly between other things" , "Forced into a narrow space" .)