Plan attic conversion to house clubs (6)
I believe the answer is:
tactic
'plan' is the definition.
(I know that tactic is a type of plan of action)
'attic conversion to house clubs' is the wordplay.
'conversion' indicates an anagram.
'to house' indicates putting letters inside.
'clubs' becomes 'c' (abbreviation in card games).
'attic' with letters rearranged gives 'tatic'.
'tatic' placed around 'c' is 'TACTIC'.
(Other definitions for tactic that I've seen before include "Action designed to achieve a specific end" , "A TT C-i-C (anag.)" , "An action planned to achieve a specific end" , "Skilful move or plan" , "Planned manoeuvre or skilful move" .)