Good advice to the introvert (7)
I believe the answer is:
'introvert' is the definition.
The definition and answer can be both people as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'good advice to the' is the wordplay.
I cannot quite understand how this works, but
'good' could be 'ok' and 'ok' is found in the answer.
'the' could be 't' (the is pronounced as a 't' sound in some dialects) and 't' is found within the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for lookout that I've seen before include "Watchman" , "Person keeping watch" , "Watching person" , "Beware - keep a sharp eye open" , "Sentinel, watcher" .)