Twitcher stumbles across corncrake in the Borders (7)
I believe the answer is:
triceps
'twitcher' is the definition.
I can't tell whether this defines the answer.
'stumbles across corncrake in the borders' is the wordplay.
'stumbles' becomes 'trips' ('trip' can be a synonym of 'stumble').
'across' means one lot of letters goes inside another.
'corncrake in the borders' becomes 'ce' (I can't justify this - if you can you should give a lot more credence to this answer).
'trips' placed around 'ce' is 'TRICEPS'.
Can you help me to learn more?
(Other definitions for triceps that I've seen before include "Green citrus fruit" , "army feature?" , "Source of uplifting strength" , "Upper-arm muscle" , "One stretches out an arm!" .)
