Plenty in need, perhaps, around Land's End and without help (13)
I believe the answer is:
independently
'without help' is the definition.
I can't judge whether this definition defines the answer.
'plenty in need perhaps around land's end' is the wordplay.
'perhaps' indicates an anagram.
'around' means one lot of letters goes inside another.
'end' indicates one should take the final letters.
The last letter of 'land' is 'd'.
'plenty'+'in'+'need'='plentyinneed'
'plentyinneed' anagrammed gives 'inependently'.
'inependently' placed around 'd' is 'INDEPENDENTLY'.
'and' is the link.
Can you help me to learn more?
(Other definitions for independently that I've seen before include "Alone and unaided" , "without the help of others" .)