Staggering aft, infirm sailor may grasp it (8)
I believe the answer is:
taffrail
'sailor may grasp it' is the definition.
I can't tell whether this definition defines the answer.
'staggering aft infirm' is the wordplay.
'staggering' indicates anagramming the letters (I've seen this in other clues).
'infirm' becomes 'frail' ('frail' can be similar in meaning to 'infirm').
'aft' with letters rearranged gives 'taf'.
'taf'+'frail'='TAFFRAIL'
Can you help me to learn more?
(Other definitions for taffrail that I've seen before include "ship's bar" , "Guard on ship" , "Part of ship's timbers" , "bar on deck" , "bar at rear of ship" .)