Row about grand striped cat (5)
I believe the answer is:
tiger
'striped cat' is the definition.
(I've seen this before)
'row about grand' is the wordplay.
'row' becomes 'tier' (a tier is a row of things).
'about' means one lot of letters goes inside another.
'grand' becomes 'g' (G is short for grand as in a thousand).
'tier' placed around 'g' is 'TIGER'.
(Other definitions for tiger that I've seen before include "See 13" , "audacious person" , "Carnivorous large cat" , "''... ... burning bright, in the forests of the night'' (Blake)" , "Large forest cat" .)