Study what was formerly a bomb? (7)
I believe the answer is:
examine
'study' is the definition.
(I know that study can be written as examine)
'was formerly a bomb?' is the wordplay.
'was formerly' becomes 'ex' (I've seen this in other clues. I am not sure about the 'formerly' bit.).
'bomb?' becomes 'mine' (I've seen this before).
'ex'+'a'+'mine'='EXAMINE'
'what' is the link.
Can you help me to learn more?
(Other definitions for examine that I've seen before include "Analyse" , "Scrutinise, subject to test" , "Thoroughly inspect" , "Check" , "Inspect carefully" .)