Possibly lying at home, seeing what’s before me (9)
I believe the answer is:
insincere
'possibly lying' is the definition.
'insincere' can be an answer for 'lying' (thesaurus). I am unsure of the 'possibly' bit.
'home seeing what's before me' is the wordplay.
'home' becomes 'in' (to be in is to be (at) home).
'seeing what's before' means one lot of letters go next to another.
'me' becomes 'sincere' (I can't justify this - if you can you should give a lot more credence to this answer).
'in'+'sincere'='INSINCERE'
'at' acts as a link.
Can you help me to learn more?
(Other definitions for insincere that I've seen before include "displaying hypocrisy" , "Hollow" , "Not expressing genuine feelings" , "Untruthful" , "Less than honest" .)