Wretched dwelling, not large, in seaside resort (4)
I believe the answer is:
hove
'seaside resort' is the definition.
'hove' can be an answer for 'resort' (seaside resort). I am not sure about the 'seaside' bit.
'wretched dwelling not large' is the wordplay.
'wretched dwelling' becomes 'hovel' (I've seen this before).
'not' is a deletion indicator.
'large' becomes 'L' (eg in clothes sizes).
'hovel' with 'l' taken away is 'HOVE'.
'in' acts as a link.
Can you help me to learn more?
(Other definitions for hove that I've seen before include "Resort adjoining Brighton" , "Resort near Brighton" , "Moved into a certain position" , "coastal town" , "Came into view" .)