Marsh, perhaps, never accommodating a lot of steps? (5)
I believe the answer is:
ngaio
'marsh perhaps' is the definition.
(crime novelist Ngaio Marsh is an example)
'never accommodating a lot of steps?' is the wordplay.
'never' becomes 'no' (I've seen this in other clues).
'accommodating' means one lot of letters goes inside another.
'a lot of' means to remove the last letter (I've seen 'lots of' mean this (the majority of the word)).
'steps?' becomes 'gait' (someone's way of walking).
'gait' with its final letter taken away is 'gai'.
'no' placed around 'gai' is 'NGAIO'.
(Other definitions for ngaio that I've seen before include "- Marsh, NZ author" , "- Marsh, NZ detective novelist" , "New Zealand tree" , "wood" , "- - Marsh, crime writer" .)