One in eight perhaps quarrelsome type? (5)
I believe the answer is:
rower
'one in eight perhaps' is the definition.
(eight is a type of rowing crew)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for rower that I've seen before include "Stroke with blade" , "Sportsperson" , "Waterman" , "Oarsman/oarswoman" , "Perhaps stroke" .)