Delighted if your hosts strengthen spiritually (5)
I believe the answer is:
edify
'strengthen spiritually' is the definition.
(I've seen this before)
'delighted if your hosts' is the wordplay.
'hosts' indicates the answer is hidden within the clue.
'EDIFY' is hidden in the letters of 'delighted if your'.
(Other definitions for edify that I've seen before include "Improve (someone) morally or intellectually" , "Educate, uplift" , "Improve understanding" , "Build up spiritually" , "Tutor" .)