Concentrated at home on future perhaps (7)
I believe the answer is:
intense
'concentrated' is the definition.
(similar in meaning)
'home on future perhaps' is the wordplay.
'home' becomes 'in' ('he's home' can mean 'he's in').
'on' means one lot of letters go next to another.
'future perhaps' becomes 'tense' (grammar).
'in'+'tense'='INTENSE'
'at' is the link.
(Other definitions for intense that I've seen before include "Strongly-felt" , "Profound" , "Feeling deeply" , "Extreme - strong" , "Extremely earnest or serious" .)