Hold an admiral (6)
I believe the answer is:
nelson
This clue is a double definition.
'hold' is the first definition.
(wrestling hold)
'admiral' is the second definition.
(I've seen this before)
'an' is the link.
(Other definitions for nelson that I've seen before include "northern town" , "... famous admiral" , "18th century admiral" , "English naval commander - wrestling hold" , "British admiral, d. 1805" .)