Nelson, for example, has arm laid out (7)
I believe the answer is:
admiral
'nelson for example' is the definition.
(I know that Horatio Nelson is Admiral)
'arm laid out' is the wordplay.
'out' indicates an anagram (out can mean wrong or inaccurate).
'arm'+'laid'='armlaid'
'armlaid' with letters rearranged gives 'ADMIRAL'.
'has' is the link.
(Other definitions for admiral that I've seen before include "Benbow, say" , "Blake, for one" , "Naval high-up" , "[NELSON] perhaps" , "Eg, Nelson" .)