A shelter of character (4)
I believe the answer is:
gamp
'a shelter' is the definition.
(gamp is a kind of shelter)
'character' is the wordplay.
I cannot really see how this works, but
'character' could be 'p' and 'p' is found in the answer.
The remaining letters 'gam' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
'of' acts as a link.
Can you help me to learn more?
(Other definitions for gamp that I've seen before include "Waterproof cover" , "Umbrella (from Dickens character)" , "Midwife" , "Umbrella (inf)" .)