It's lovely to have a baby, perhaps (5)
I believe the answer is:
grand
'baby perhaps' is the definition.
Both the definition and answer are adjectives. Maybe you can see a link between them that I can't see?
'it's lovely to have a' is the wordplay.
I cannot really understand how this works, but
'a' could be 'an' and 'an' is found in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for grand that I've seen before include "Majestic" , "GBP1,000" , "PS1k" , "Imposing; PS1,000" , "Comprehensive" .)