Take one's hat off to daughter entering a stretch of boggy ground (6)
I believe the answer is:
admire
'take one's hat off to' is the definition.
(to take one's hat off to someone is to praise them)
'daughter entering a stretch of boggy ground' is the wordplay.
'daughter' becomes 'd' (genealogical abbreviation).
'entering' indicates putting letters inside.
'stretch of boggy ground' becomes 'mire' (boggy or swampy area).
'a'+'mire'='amire'
'd' inserted into 'amire' is 'ADMIRE'.
(Other definitions for admire that I've seen before include "Goggle at" , "Think highly of, esteem" , "Respect (someone)" , "Hold in high respect" , "Esteem. value" .)