Time to tie up outside club, securing old vessel (9)
I believe the answer is:
motorboat
'old vessel' is the definition.
'motorboat' can be an answer for 'vessel' (motorboat is a kind of vessel). I am not sure about the 'old' bit.
'time to tie up outside club' is the wordplay.
'time' becomes 't' (abbreviation).
'to tie up' becomes 'moor' (as in mooring a boat).
'outside' indicates putting letters inside (some letters go outside others).
'club' becomes 'boat' (I can't explain this - if you can you should believe this answer much more).
't' going into 'moor' is 'motor'.
'motor'+'boat'='MOTORBOAT'
'securing' acts as a link.
Can you help me to learn more?
(Another definition for motorboat that I've seen is " powered vessel".)