With arm on the counter, obtains fast food (7)
I believe the answer is:
nuggets
'with arm on the counter obtains fast food' is the definition.
I can't judge whether this defines the answer.
'with arm on the counter obtains' is the wordplay.
'with' means one lot of letters go next to another.
'arm' becomes 'gun' (gun is a kind of arm).
'on the counter' is a reversal indicator (counter can mean in the opposite direction).
'obtains' becomes 'gets' ('get' can be a synonym of 'obtain').
'gun' in reverse letter order is 'nug'.
'nug'+'gets' is 'NUGGETS'.
Can you help me to learn more?
(Other definitions for nuggets that I've seen before include "Solid lumps of a precious metal" , "Small lumps of gold" , "Lumps of metal like gold" .)