Obviously very unhappy with lot (7)
I believe the answer is:
overtly
'obviously' is the definition.
(I've seen this before)
'very unhappy with lot' is the wordplay.
'unhappy with' indicates anagramming the letters.
'very' mixed up with 'lot' can make 'OVERTLY'.
(Other definitions for overtly that I've seen before include "in the public eye" , "In an open manner" , "Publicly; evidently" , "So that anyone can see" , "Observably, not hidden" .)