Row about head of government being an aggressive type (5)
I believe the answer is:
tiger
'an aggressive type' is the definition.
The definition and answer can be both people as well as being singular nouns.
I also know that 'aggressive' relates to this answer.
'row about head of government' is the wordplay.
'row' becomes 'tier' (a tier is a row of things).
'about' means one lot of letters goes inside another.
'head of' indicates taking the first letters.
The first letter of 'government' is 'g'.
'tier' going around 'g' is 'TIGER'.
'being' is the link.
Can you help me to learn more?
(Other definitions for tiger that I've seen before include "One noted for stripes" , "Dynamo" , "The Celtic one has died" , "Striped quadruped" , "Dead Celtic feline" .)