Crossword Genius

Determined person not getting on is needing shelter (10)

Ross

I believe the answer is:

'determined' is the definition.
(I've seen this before)

'person not getting on is needing shelter' is the wordplay.
'not getting' is a deletion indicator.
'needing' says to put letters next to each other.
'shelter' becomes 'tent' (tent is a kind of shelter).
'person' with 'on' removed is 'pers'.
'pers'+'is'+'tent'='PERSISTENT'

(Other definitions for persistent that I've seen before include "Unrelenting - prettiness (anag)", "Ongoing", "Endless", "Determined", "Resolute - interminable".)

I've seen this clue in The Telegraph.