Beefy one posted to patrol around (7)
I believe the answer is:
topside
'patrol around' is the definition.
Although both the answer and definition are singular nouns, I can't understand how they can define each other.
'beefy one posted' is the wordplay.
I cannot really understand how this works, but
'one' could be 'i' (Roman numeral) and 'i' is found in the answer.
an anagram of 'posted' is 'topsde' which is within the left over letters.
No letters remain.
This explanation may well be incorrect...
'to' acts as a link.
Can you help me to learn more?
(Other definitions for topside that I've seen before include "Deposit (anag) -- cut of meat" , "Cut of beef from thigh" , "Lean cut of beef, no bone" , "Towards ship's upper decks; part of cut of beef" , "Joint" .)