Lessee brought in often antsy (6)
I believe the answer is:
tenant
'lessee' is the definition.
(I've seen this before)
'in often antsy' is the wordplay.
'in' indicates a hidden word.
'TENANT' is hidden in the letters of 'often antsy'.
'brought' acts as a link.
This may not be right. It may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for tenant that I've seen before include "Anne Bronte's novel 'The ...... of Wildfell Hall'" , "One renting property" , "One who pays rent" , "he or she rents" , "one paying rent" .)