Crumbs near pig full of energy (2,6)
I believe the answer is:
by george
'crumbs' is the definition.
I don't know anything about this answer so I cannot tell whether it can be defined by this definition.
'near pig full of energy' is the wordplay.
'near' becomes 'by' (near means close by).
'pig' becomes 'gorge' (I've seen this before).
'full of' means one lot of letters goes inside another.
'energy' becomes 'e' (physics symbol as in E=mco).
'gorge' placed around 'e' is 'george'.
'by'+'george'='BY GEORGE'
Can you help me to learn more?
(Other definitions for by george that I've seen before include "exclamation of astonishment" , "Anne succeeded so" , "Fancy that" , "Goodness" , "Well I never" .)