Row about gang leader being an aggressive type (5)
I believe the answer is:
tiger
'an aggressive type' is the definition.
The answer and definition can be both people as well as being singular nouns.
I also know that 'aggressive' relates to this answer.
'row about gang leader' is the wordplay.
'row' becomes 'tier' (a tier is a row of things).
'about' is an insertion indicator.
'leader' indicates taking the first letters.
The first letter of 'gang' is 'g'.
'tier' placed 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 "Dynamo" , "Asian animal" , "dynamic economy" , "Large feline of the forests" , "Striped feline" .)