Search for Briton around union (5)
I believe the answer is:
scout
'search' is the definition.
The answer and definition can be both to do with perception as well as being verbs in their base form.
Perhaps you can see a link between them that I can't see?
'briton around union' is the wordplay.
'briton' becomes 'Scot' (Scot is a type of Briton).
'around' means one lot of letters goes inside another.
'union' becomes 'U' (common abbreviation as in 'Trades Union Congress').
'scot' placed around 'u' is 'SCOUT'.
'for' acts as a link.
Can you help me to learn more?
(Other definitions for scout that I've seen before include "Member of organisation for boys" , "One on a recce mission" , "Soldier on a reconnaissance mission" , "One searches for and recruits talented people" , "Reconnoitre" .)