About a hundred and fifty intend to get back (7)
I believe the answer is:
reclaim
'get back' is the definition.
(I've seen this before)
'about a hundred and fifty intend' is the wordplay.
'about' becomes 're' ('re' means regarding or about).
'a hundred' becomes 'C' (Roman numerals).
'and' means one lot of letters go next to another.
'fifty' becomes 'L' (Roman numeral).
'intend' becomes 'aim' (aiming is a kind of intending).
're'+'c'+'l'+'aim'='RECLAIM'
'to' is the link.
(Other definitions for reclaim that I've seen before include "civilize" , "Get back (airline baggage)" , "Make (land) available for use" , "Seek or get back" , "recovery like this" .)