Scout learning under former leader of pack (7)
I believe the answer is:
explore
'scout' is the definition.
(thesaurus)
'learning under former leader of pack' is the wordplay.
'learning' becomes 'lore' (I've seen this before).
'under' says to put letters next to each other.
'former' becomes 'ex'.
'leader of' suggests taking the first letters.
The first letter of 'pack' is 'p'.
'ex'+'p'='exp'
'lore' put after 'exp' is 'EXPLORE'.
(Other definitions for explore that I've seen before include "Examine or investigate, maybe possibilities" , "Investigate in detail" , "Search and inquire into" , "Carefully survey" , "Travel through an area to learn about it" .)