gosh! harder than it looks - almost hit panic mode but saw it through ok :-)

Fun grid

Accepted "trees" as a solution to both the "apple" and "lime" groups, despite the given connections being "fruit" and "trees"... Also, Poplar is not a tube station, it is a station on the Docklands Light Railway, which is separate from the London Underground (a.k.a the Tube).

Despite the comment below it was solvable and fun; good work!

NLYCNNCT - are you Mr A?

OOE - wasn't aware of Mr A prior to your comment, so thanks for bringing him to my attention... having read past communiques I must say I like the cut of his jib!

Poplar is not a tube station - it is only a DLR (Docklands Light Rail) station

Good one - though the final group could have been words within words - SPINdle, PINe, liME, bOX.