Suggest bottling old wine without any strength (10)
I believe the answer is:
impotently
'without any strength' is the definition.
(impotent means without power or strength)
'suggest bottling old wine' is the wordplay.
'suggest' becomes 'imply' (implying is a kind of suggesting).
'bottling' indicates putting letters inside (bottling is a kind of containing).
'old' becomes 'o' (common abbreviation eg in OE for Old English).
'wine' becomes 'tent' (type of Spanish wine).
'o'+'tent'='otent'
'imply' placed around 'otent' is 'IMPOTENTLY'.
(Another definition for impotently that I've seen is " without strength".)