Lacking direction, I am trapped in area? Not so (7)
I believe the answer is:
aimless
'lacking direction' is the definition.
(I've seen this before)
'i am trapped in area? not so' is the wordplay.
'i am' becomes 'I'm' (contraction).
'trapped in' indicates putting letters inside.
'not so' becomes 'less' (eg 'not so big' means 'less big').
'a'+'less'='aless'
'im' put inside 'aless' is 'AIMLESS'.
(Other definitions for aimless that I've seen before include "not knowing where to go?" , "Without purpose or target" , "Drifting with no purpose" , "Rambling" , "Without objectives" .)